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International
Whooping Crane Recovery Team
WHOOPING CRANE RECOVERY ACTIVITIES
March
2004 - September 2004
By
Tom Stehn
USFWS Whooping Crane Coordinator

photo by USFWS; Joel Trick
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CONTENTS
HIGHLIGHTS
ARANSAS
- WOOD BUFFALO
Spring
Migration 2004
Summer 2004
Platte River
Whooping
Crane Shooting Case in Texas - Sentencing
ARANSAS
NATIONAL WILDLIFE REFUGE
Freshwater
Inflow
Chemical Spill
National
Estuarine Research Reserve
Cedar Bayou
Specimens
Funding
Issues
Recovery
Plan Revision
Whooping Crane Conservation Association
Whooping Crane Collisions with Power Lines
Whooping Crane Recovery Team
CAPTIVE
FLOCKS -
SPECIES
SURVIVAL CENTER, BELLE CHASSE, LOUISIANA
AUDUBON ZOO, NEW ORLEANS
CALGARY
HOMOSASSA SPRINGS WILDLIFE STATE PARK, FLORIDA
ICF
LOWRY PARK
MILWAUKEE COUNTY ZOO, WISCONSIN
PATUXENT
SAN
ANTONIO
VICTORIA ZOO
WHOOPING
CRANE NUMBERS -SEPTEMBER 30, 2004
HIGHLIGHTS
In Canada, a record 66 chicks hatched from 54 nests, including 20
sets of twins. From these, a record 40 chicks fledged in mid-August, including
5 sets of twins. The excellent production means that this winter, the
whooping crane population should surpass 200, up from 193 this past spring.
The Northern
Life Museum in Fort Smith, N.W.T. opened a new exhibit prominently displaying
the whooping crane named CANUS. CANUS was the most prolific whooping crane
ever, siring approximately 186 chicks in his 38-years in captivity at
Patuxent.
The National
Academy of Science released a report in April on the Platte River in Nebraska
supporting USFWS designation of critical habitat and efforts to provide
endangered species habitat.
A Dallas
man pled guilty to federal charges surrounding the killing of a whooping
crane in Texas last fall. He started serving a six-month prison sentence
and faces more than $10,000 in fines.
The resident
whooping cranes in Florida survived three hurricanes with their habitat
benefiting from heavy rains. Only one crane was killed by a predator about
the time of Hurricane Charley, but the death was believed to be unrelated
to the storm. The crane that died had been named "Lucky", the
first whooping crane to have fledged in Florida from the reintroduced
flock. In 2004, a record 13 whooping crane pairs nested in Florida, but
hatching success was poor and only one chick fledged.
Nine of the
eastern migratory whooping cranes got blocked by Lake Michigan in their
migration northward. Six of them summered in Michigan, while three finally
make it around the southern end of the lake and returned to central Wisconsin.
One of the Michigan cranes died. The remainder of the 35 eastern migratory
whooping cranes migrated back successfully to central Wisconsin.
The Whooping
Crane Eastern Partnership (WCEP) Migration Team trained 14 more juvenile
whooping cranes for the fall migration that began October 10th. All 14
cranes of the chicks were hatched at the USGS Patuxent Wildlife Research
Center (Patuxent), with one of the eggs having come from the International
Crane Foundation (ICF). Three other egg transfers from the San Antonio
Zoo (2 eggs) and ICF (1 egg) did not result in surviving chicks. ICF raised
four cranes, joined by two cranes from Calgary, which will be shipped
to Florida as a release cohort for the nonmigratory flock.
The Audubon
Zoo in New Orleans dedicated its new whooping crane exhibit on September
22nd holding a display pair. The exhibit has a large pool and is in a
prominent location near the zoo entrance. The Audubon Nature Institute
in New Orleans received a 1.2 million dollar Congressional appropriation
to build a new whooping crane breeding facility for 10 pairs of whooping
cranes. Ground clearing began during the summer and construction started.
Captive breeding
facilities had a fair production season in 2004 and fledged 30 chicks.
Chicks were allocated to the ultralight project (15), the nonmigratory
flock in Florida (6), a solo release in central Wisconsin (1), genetic
holdbacks as future breeders (6), a holdback as a display bird (1), and
a holdback for health reasons (1). Genetic goals of the captive flocks
were fully met in 2004, with several very valuable chicks produced. Numbers
for reintroductions were less than hoped for, but met minimum targets.
Whooping crane numbers at the end of September, 2004, both captive (134)
and wild (318), totaled a record 452.
ARANSAS
- WOOD BUFFALO
Spring
Migration , 2004
An estimated 169 adults/subadults and 24 juvenile whooping cranes
(193 total) migrated north in the spring of 2004, nine more than had
left Aransas in spring, 2003. One white-plumaged crane and one juvenile
were still at Aransas on May 4th but had departed by May 12th. No mortalities
were reported during the spring migration which occurred at the usual
time. One hundred seventy-one cranes (89%) of the flock departed Aransas
between March 24 and April 14, with 153 whooping cranes (79%) starting
the migration between March 31 and April 14.
The first
dates recorded for confirmed observations of migrating whooping cranes
were March 8 in the U.S. and April 16 in Canada. The last sighting date
was April 29 in the U.S. and May 30 in Canada. All but one of the confirmed
sightings in the U.S. were reported between March 27 and April 29. The
weather during April was unseasonably warm and dry in the northern Great
Plains, with numerous high temperatures in the 80s. A major sandhill
crane, and probably whooping crane, migration occurred April 3-5. The
mild weather during April allowed the migration to progress quickly.
A total of 40 sightings were reported from Texas (2), Oklahoma (3),
Kansas (3), Nebraska (4), South Dakota (1), North Dakota (9), and Saskatchewan
(18). *
* (paragraph
paraphrased from Jobman 2004, Cooperative Whooping Crane Tracking Project).
SUMMER
, 2004
The fall migration was the 57d migration monitored since tracking
began in the fall of 1975. It is a cooperative effort by private organizations,
state and federal conservation agencies, and Canadian Wildlife Service.
U.S. records are compiled by Wally Jobman of USFWS-ES in Grand Island,
Nebraska, who provided the following information (Jobman 2004, Cooperative
Whooping Crane Tracking Project (August 2003-January 2004).
"The
first dates for confirmed observations of migrating whooping cranes
were August 26 in Canada and October 1 in the U. S. The latest sighting
date was October 29th in Canada and December 19th in the U.S. Sightings
were reported from Saskatchewan (24), Montana (1), North Dakota (7),
South Dakota (4), Nebraska (6), Kansas (13), Oklahoma (14) and Texas
(14). Weather during September and October, 2003, was unseasonably mild
and dry in the northern Great Plains. The first major storm system of
the fall, which moved through Nebraska on October 30, brought colder
weather and snow to Saskatchewan and the Dakotas. No whooper sightings
were reported north of Kansas after November 5, an indication that the
storm system had pushed most cranes into Kansas, Oklahoma, and Texas.
This storm system stalled in northern Texas and did not reach the Texas
coast until November 6-7. As a result, 41 of the 59 fall sightings confirmed
in the U.S. were from Kansas, Oklahoma, and Texas. Approximately 24
whooping cranes were sighted at Salt Plains NWR in Oklahoma. Five color-marked
cranes were reported out of 25 banded cranes.
The 14
sightings in Texas was unusually high, a state through which whooping
cranes usually migrate rapidly. A pair with two chicks was first observed
at Aransas on October 25, only 8 days after leaving Saskatchewan. A
lone juvenile whooping crane, confirmed in Saskatchewan in early October,
was reported in Young County, Texas on November 2 and may have wintered
in an unknown location with sandhill cranes. One crane was shot by a
hunter in Texas on November 14. The first 2 whooping cranes arrived
at Aransas on October 18th. About 86 % of all arrivals (i.e. 167 birds)
occurred between October 23 and November 19, very similar to the previous
fall."
An adult
whooping crane was shot and killed November 14th south of Dallas, Texas.
A suspect was apprehended by a TPWD game warden and the case turned
over to USFWS.
Four whooping
cranes had been present for several days feeding in a cornfield during
the day and presumably roosting at night on Lake Bardwell. One crane
was shot about 15 minutes before sunset apparently as it flew to roost.
Locals heard shots coming from Waxahachie Creek, a part of Lake Bardwell
near Ennis, Texas. With waterfowl season closed, the local warden was
called. TPWD Warden James Powell responded and apprehended the hunter
with 3 ducks plus 1 whooping crane hidden in a bag tucked under the
bow of his boat. The hunter indicated he had shot a white crane. The
necropsy showed bird to be an adult female with about 20 shot pellets
in her. The 3 remaining cranes resumed migration 2 days after the shooting
incident. In early February, the suspect pleaded guilty. Sentencing
is not expected until at least April.
Any shooting
of a whooping crane is an unfortunate situation. In this case, the shooting
was done by a hunter during a closed waterfowl season and closed sandhill
crane season and without the required reservoir hunting permit from
the Corps of Engineers. This was the 7th known whooping crane to be
shot in North America dating back to 1989, an average of nearly one
loss every other year. Shootings have been located in Texas (3), Florida
(3), and Canada (1). Only three of the shootings were connected with
hunting seasons. Efforts need to be continued to implement the Federal-State
contingency plan, and to inform hunters about whooping cranes, including
annual press releases, brochures, web pages, hunter education classes,
and law enforcement presence. This was discussed at the Central Flyway
Technical meetings held in Texas on March 1, 2004.
PLATTE
RIVER
The drought affecting the Platte continued throughout the summer.
At the end of September, the river remained mostly dry. The reservoir
at Lake McConaughy approached an all-time low of about 25% capacity.
In April,
a National Academy of Science (NAS) panel released a report on the central
Platte River in Nebraska supporting USFWS designation of critical habitat
and efforts to provide endangered species habitat. The river is considered
by many conservationists to be the most important stopover for migratory
birds in the nation's heartland. The central Platte River provides habitat
for endangered whooping cranes and interior least terns, threatened
piping plovers, and on the lower Platte River habitat for the endangered
pallid sturgeon. The Platte River Basin stretches across Colorado, Wyoming,
and Nebraska. A series of dams and reservoirs have been constructed
throughout the river basin for flood control and to provide water for
farm irrigation, power generation, recreation, and municipal use. This
water control system has caused habitat changes at odds with the protection
of federally listed species. In recent years, the U. S. Fish and Wildlife
Service (USFWS) issued a series of opinions requiring that new water
depletions would have to be balanced by mitigation measures.
The NAS
study concluded that areas along Nebraska's Platte River are properly
designated as "critical habitat" for the whooping crane and
piping plover. The committee appointed by the National Research Council
found that recommendations by the federal government aimed at protecting
these and other federally listed species were scientifically valid at
the time they were made, but called on future decisions to be based
on newer scientific approaches. The report concludes that in most instances
habitat conditions are indeed affecting the likelihood of species survival
and recovery. The committee found that the central Platte habitat is
important to whooping cranes because many, if not all, stop there during
migration at some point in their lives - some seven percent of the total
population stops there in any one year. The report also notes that if
whooping crane deaths - which occur primarily during migration - were
to increase by only three percent, the general population would probably
become unstable.
The Draft
Environmental Impact Statement (DEIS) for the Platte River Recovery
Implementation Program (Program) was released for public review in February.
Public meetings were held and the often extended public comment period
ended September 20th. Tom Stehn, representing the International Whooping
Crane Recovery Team, submitted comments. In the August working draft
biological opinion, the USFWS identified several areas in the Program
documents requiring further development to enable the identification
of a single preferred alternative. Following discussions with the Program
Governance Committee, the USFWS decided to not release the draft Biological
Opinion pending completion of Program documents by February 2005, and
the development of a final EIS and preferred alternative by August,
2005. The final biological opinion on the Program is expected within
two or three months following the release of the final EIS. Meanwhile,
the wrangling continues and the habitat for endangered species continues
to degrade.
There are
interesting parallels between water management issues on the Platte
River and the Guadalupe River in Texas that both provide inflows to
whooping crane critical habitat. The water diversions on the Platte
and Guadalupe Rivers have very different biological impacts, but both
are harmful to whooping crane habitat. USFWS has repeatedly stated that
the Platte River resource is seriously degraded and not able to adequately
support endangered species. The Nebraska Department of Natural Resources
determined earlier this spring that the Platte River in Nebraska is
overappropriated (officially) upstream of Elm Creek, the next town west
of Kearney. The parallel with the Guadalupe is that environmentalists
feel that on sections of the Guadalupe, water flows are already over-appropriated.
Just as water depletions on the Platte River have continued to grow
over time, more and more water rights continue to be granted from the
Guadalupe. The USFWS has developed jeopardy opinions for any water project
taking more than 25 acre-feet from the Platte where the whooping cranes
may make only a brief stopover in spring and fall. This can be compared
with the current proposal to take approximately 89,000 acre-feet from
the mouth of the Guadalupe River and pump it back to San Antonio for
human consumption that could impact whooping crane habitat that the
birds utilize six months of the year.
WHOOPING
CRANE SHOOTING CASE IN TEXAS - SENTENCING
A
Dallas man who pled guilty to federal charges surrounding the killing
of a whooping crane in Texas in the fall of 2003 will spend six months
in prison and faces more than $10,000 in fines. In May, Donald W. Jones
was sentenced to six months in federal prison, levied a $2,000 fine
and prohibited from hunting again in the United States until his sentence
is completed. In addition to the federal penalties, Jones faces more
than $8,000 in civil penalties from the state of Texas and was scheduled
to serve his sentence starting on July 19.
Mr. Jones
had entered a guilty plea in February 2004 to transporting wildlife
taken and possessed in violation of 16 U.S.C. §§ 3372(a)(1)
and 3373(d)(2). Jones admitted that on November 14, 2003 he knowingly
transported a whooping crane and three ducks, when he knew the wildlife
was taken and possessed in violation of the Migratory Bird Treaty Act.
On a day that the regular Texas waterfowl hunting season was closed,
Jones was duck hunting at Lake Bardwell in Ellis County, Texas. Lake
Bardwell lies in a geographical zone of Texas closed to all crane hunting.
At approximately 6:30 p.m. in response to a tip from the public, a Texas
Game Warden apprehended Jones as he was preparing his boat and truck
to depart from Lake Bardwell. In response to the warden's questions
about what wildlife had been taken, Jones volunteered that he had killed
three ducks. The warden asked Jones if he had killed any other wildlife,
and Jones responded, "No." The warden then began to examine
various bags inside Jones' boat and truck and discovered a zippered
bag containing a dead whooping crane underneath a piece of camouflage
burlap. When questioned, Jones responded that he had always wanted to
shoot a sandhill crane and admitted that he shot the whooping crane
by mistake, believing it to be a white sandhill crane. The whooping
crane recovered from Jones is believed to be one of four spotted in
the Lake Bardwell area, south of Dallas, during the week of November
10, 2003. Biologists believe that the three remaining birds that remained
in the area resumed their annual migration south for the winter.
In response
to various notes on a birding web site about the punishment, USFWS Special
Agent Steve Hamilton wrote the following in the June, 2004 newsletter
of the Audubon Outdoor Club, Corpus Christi, Texas.
"The
defendant being sentenced to 6 months is the most time of incarceration
that any defendant has ever received in a whooping crane killing. In
1991, a defendant received 60 days confinement, a $10,000 fine, and
5 years probation. The defendant in the most recent case did not have
the financial means to pay any restitution or a substantial fine. The
defendant claimed in court that the IRS was in the process of placing
liens on his property and garnishment of his wages. I've learned from
almost 30 years of wildlife enforcement that incarceration in a federal
prison for wildlife crimes sends a strong message to would-be violators.
It's always easier to pay money then to spend time locked up
.
Needless to say, I'm very pleased with the court's ruling in this matter.
I believe the bar has been set high for any future incidents of this
kind."
U.S. Attorney
Boyle praised the investigative efforts of agents of the United States
Fish and Wildlife Service and game wardens with the Texas Parks and
Wildlife Department. The case was prosecuted by Assistant United States
Attorney Mark D. McBride. Special Agent Hamilton did an excellent job
pursuing the sentencing phase of this case. It took a lot of effort
to get the message across of how valuable whooping cranes are. For the
court, Tom Stehn calculated that the cost of releasing one migratory
whooping crane in central Wisconsin is approximately $160,000. The Judge
reportedly watched a Whooping Crane Eastern Partnership video about
reintroduction efforts just prior to sentencing.
In response
to this incident, Texas Parks and Wildlife Department worked to produce
a poster of look-alike species, a short news release video to use before
hunting season, and produce a 10-15 minute "shoot-don't shoot"
video that will focus on white birds and protecting whooping cranes.
ARANSAS
NATIONAL WILDLIFE REFUGE
FRESHWATER
INFLOWS
Water
issues continued to receive a tremendous amount of attention in Texas.
Freshwater inflows needed to protect whooping cranes and their winter
food supply were featured in the June-July National Wildlife Federation
Magazine on water conservation in the southwest. Tom Stehn was interviewed
and helped bring attention to the difficult issue of water diversions
on Texas rivers.
The San
Marcos River Foundation's (SMRF) application for a conservation flow
of 1.3 million acre-feet was dismissed by the State. The SMRF application
is now before the State District Court in Austin. Three water agencies
had claimed there was not sufficient water in the Guadalupe River for
that large of a conservation flows. The legislature directed the Texas
Council on Environmental Quality to suspend processing permit applications
requesting conservation flows for bays and estuaries. As soon as these
conservation water rights applications were set aside, permit applications
were filed for hundreds of thousands of acre-feet up and down the coast.
Three water agencies applied for a new water right for 289,000 acre-feet
of water from the Guadalupe. These applications are currently being
processed.
The bays
and whooping cranes will suffer from insufficient inflows, particularly
in drought years. An analysis by the National Wildlife Federation (NWF)
found that if a repeat of the 1950's worst year drought occurs and water
rights are fully utilized, that because of all the water appropriated
since that time, there would only be 28% of river water reaching the
bays compared to the drastic low flows that occurred during the 1950's.
Furthermore, the NWF found that flows would be below the state-established
salinity threshold for 24 consecutive months with full permit usage,
compared to the worst historic period of 14 months below the salinity
threshold. Twenty-four consecutive months of elevated salinities could
severely impact shrimp, oysters, blue crabs and fish and wildlife, including
whooping cranes which depend upon them. In October, the NWF put out
a report entitled "Bays in Peril: A Forecast of Freshwater Flows
to Texas Estuaries". Their report stated that inflows below drought
tolerance levels would increase in frequency by 250% compared to natural
conditions if currently authorized surface water permits are fully utilized
and if wastewater reuse increased to 50%. Their projections show the
San Antonio Bay system that contains whooping crane critical habitat
will be significantly threatened during periods of low rainfall under
current water management practices.
The Lower
Guadalupe Water Supply Project (LGWSP) chugged along with efforts made
to contract a firm to write an EIS. Opposition to the project has grown
in counties near the coast where a proposed 50,000 acre-feet of ground
water in some years will be pumped back to San Antonio. Congressman
Ron Paul has officially come out opposed to LGWSP. Texas A & M University's
inflow/salinity/crab/crane study at Aransas continued full-time with
3 professors and approximately 6 graduate students. The refuge provided
considerable logistical support and housing for the students. A two-day
conference with invited wetland and modeling experts was held in San
Antonio at the end of September to fine-tune the study.
On September
8th, Tom Stehn was interviewed on camera by Lee Smith of TPWD for their
annual television special on water issues which this year focuses on
rivers. This program will air on all Texas PBS stations and on TPWD's
weekly show.
CHEMICAL
SPILL
In
May in San Antonio Bay just north of the refuge, an estimated 1,000
gallons of diesel fuel leaked from a tug as it began sinking while pulling
two barges. One of the barges was empty and the other contained 9,700
barrels of cyclohexane. The undamaged barges kept the tug from sinking
entirely. Three tug crewmembers were rescued by the Coast Guard. The
slick of up to ½-mile in size stayed out in the open bay and
mostly evaporated and/or was partly contained before it could harm nearby
wetlands.
NATIONAL
ESTUARINE RESEARCH RESERVE
A proposal
by the University of Texas to create a 245,000-acre National Estuarine
Research Reserve (NERR) and build a coastal wetlands research facility
in the Coastal Bend was approved by federal officials at the end of
September. U.S. Senator Kay Bailey Hutchison, R-Texas, was a strong
supporter of the university's bid for the site. When the review process
appeared at a stalemate, she contacted the National Oceanic and Atmospheric
Administration (NOAA) on behalf of the university, and approval was
obtained. "This center will fulfill an important federal need,"
Hutchison said, "while bringing new jobs to the region and enhancing
Texas' standing as a research leader."
This is
the first wetlands research system to be developed in Texas to join
25 national estuarine research reserves. The proposal has been promoted
by Dr. Paul Montagna of the Texas Marine Science Institute in Port Aransas
dating back to 1997. The NERR is a way for U. of Texas and other universities
to get funding from NOAA to do basic biological monitoring and research
over a large area of land, bay and gulf. When complete, the research
reserve will have an annual operating budget of $450,000 and employ
four researchers. This research reserve will study the ecosystem in
Copano and Aransas bays, which are fed by the Mission and Aransas rivers.
The area was selected for reserve designation because of its relatively
pristine status compared to other bays in Texas. It includes all of
the original Aransas Refuge, and also includes portions on the south
end of Matagorda Island. This program will focus on long-term baseline
environmental monitoring of the bays, research, and environmental education.
This will add to the biological database for the refuge environs and
could lead to increased knowledge and subsequent efforts to try to keep
this area from undesirable changes. It will NOT increase regulatory
protection for the estuarine reserve. Plans call for the program to
begin in 2006. Steps to be undertaken in the next 2 years are to write
an EIS and management plan.
CEDAR
BAYOU
With
above average rainfall throughout the summer, Cedar Bayou, the natural
pass between the Gulf and bays in whooping crane critical habitat, remained
open. Cedar Bayou will not naturally stay open if substantial inflows
from the Guadalupe River aren't preserved since the construction of
the GIWW and passes at Port Aransas and Port O'Connor have changed basic
water dynamics of the system. The non-profit group Friends of Cedar
Bayou raised $100,000 from various fishing and shrimping organizations
and businesses for an engineering study for dredging the bayou when
it next silts up and becomes closed. The study should take place in
the next 6 months and make recommendations on project feasibility and
how dredging could best be done (dredging dimensions, location, jetties,
costs, placement of spoil, environmental benefits, etc). This study
should be important in creating support for an effort to keep Cedar
Bayou open with maintenance dredging whenever needed.
SPECIMENS
Whooping crane specimens shipped in the last 6 months include the following;
The adult
crane shot in Texas last fall was shipped to Texas A & M University
(TAMU) for their museum collection. The Florida Fish and Wildlife Conservation
Commission also shipped one specimen to TAMU for use as a display mount.
The Patuxent Wildlife Research Center shipped one adult to Mascatatuck
NWR in Indiana for display and two adults to Texas Parks and Wildlife
Department (TPWD) for mounting and use in an educational display in
an Operation Game Thief trailer. Parts of the two adults will be combined
into one taxidermy mount. Florida had originally sent one adult for
use in TPWD's Game Thief trailer, but the specimen was not of suitable
quality and was forwarded on to U. of Wisconsin-Madison to salvage the
complete skeleton.
FUNDING
ISSUES
The
Whooping Crane Coordinator's salary, travel and recovery budget were
funded this year using a challenge cost-share grant under President
Bush's Cooperative Conservation Initiative to complete projects in conjunction
with states, local communities, businesses, landowners and other partners.
The International Crane Foundation provided in-kind matching funds for
the grant for which I am deeply grateful. Use of cost-share money was
necessary because of lack of funding in the USFWS Region 2 Endangered
Species program. Other cost share funds in Region 2 went to Attwater's
prairie chickens.
Following
a public speech at the Whooping Crane Festival in Port Aransas in February,
contacts were made with a person wanting to provide funding for whooping
cranes in her will. This was later set up by Dr. Jim Lewis through the
Whooping Crane Conservation Association.
RECOVERY
PLAN REVISION
Work
continued with more edits made to complete a final draft of a revised
Canada-U.S. Whooping Crane Recovery Plan. The document was reviewed
by the Albuquerque office of USFWS and prepared for signature. It was
hoped the document will go out for public comment in November.
WHOOPING
CRANE CONSERVATION ASSOCIATION (WCCA)
Arrangements have been finalized for the next annual WCCA meeting
to be held on November 19th in conjunction with the 5-day Space Coast
Birding and Wildlife Festival in Titusville, Florida. Many expert speakers
will be present.
WHOOPING
CRANE COLLISIONS WITH POWER LINES
Tom
Stehn continued work on a paper about whooping crane collisions with
power lines. This issue remains the number one cause of mortality of
fledged whooping cranes in the Aransas-Wood Buffalo population. More
needs to be done to reduce these losses. A draft manuscript was reviewed
by USFWS biologists Wendy Brown and Albert Manville with expertise in
this area.
WHOOPING
CRANE RECOVERY TEAM
The
next meeting of the Whooping Crane Captive Management and Recovery Teams
is scheduled for February 8-10 at the Patuxent Wildlife Research Center
in Laurel, Maryland. February 10th will be a closed meeting for Recovery
Team members only.
FLORIDA
NON-MIGRATORY FLOCK
The following material was taken from Florida's Whooping Crane Quarterly
Report,
June - September, 2004 written by Marty Folk;
The resident
whooping cranes in Florida survived 3 hurricanes. A fourth hurricane
hit Florida but missed the crane area. The last time 4 hurricanes made
landfall in any state was in 1886 when 4 hurricanes struck Texas. Despite
winds over 100 mph at times, and literally billions of dollars in property
damage, project personnel did not detect any whooping crane mortality
or injury associated with the storms. Only one crane was killed by a
predator about the time of Hurricane Charley, but the death was believed
unrelated to the storm. The crane that died was known as "Lucky",
the first whooping crane to have fledged in Florida from the reintroduced
flock. Overall, the storms probably benefited the cranes by bringing
rain. However, as far as tropical weather systems are concerned, the
3 storms in the crane area were not really big "rain-makers".
Hurricane Charley came through the crane area on 13 August with winds
gusting to 110 mph. It was a fast-moving storm that did not have time
to drop much rain (ca. 4 inches). Hurricane Frances also crossed the
crane area of central Florida (4-5 September), moving slower and dropping
about 6 inches of rain in crane habitats. Finally, Hurricane Jeanne
brought winds of around 100 mph and more rain on 26 September.
The following
is paraphrased from the Florida Fish and Wildlife Conservation Commission's
Annual Whooping Crane Study Progress Report (July 2003 to June 2004) submitted
by Steve Nesbitt;
This year,
the FLFWCC whooping crane project soft released 16 captive reared whooping
cranes (2 cohorts of 8) in Lake County. There was no mortality of these
16 release birds and 81% survival from releases of 2003 hatch-year juveniles.
Project personnel recovered 13 mortalities among the older birds; 6
due to predation, 2 struck power lines, 1 apparently struck a fence
post, and 4 were undetermined. At the end of June, they were monitoring
70 birds (13 pairs) and suspect that others survive but could not be
tracked.
A constant
effort is required to keep functional transmitters on all whooping cranes
in the project. Personnel captured 22 cranes during the year, with 21
captured for radio replacement and one was to treat a broken wing tip.
Flightless molt was again noticed among the older birds. There were
no "extraordinary" movements among the non-migratory population
this year. There were times when whooping cranes from the migratory
(WCEP) project were within a few kilometers of some of the non-migratory
cranes though they never made contact. Biologists are still waiting
to document the results when contact between these 2 populations inevitably
occurs.
This year
11 pairs of whooping cranes laid in 13 nests. Additionally, an 8-year-old
male whooping crane nested with a female Florida sandhill crane. The
nest did not hatch and the eggs were apparently infertile. Six of the
other nests were infertile or experienced early embryo death. There
seemed to be a remarkable number of infertile nests this year. Three
of the nests produced 4 chicks, but only 1 chick was fledged from pair
591/369 who also fledged a chick in 2003. Overall the nesting results
from this year were disappointing compared to those from last year.
This year
for the first time biologists manipulated nests to remove eggs from
a pair that the Recovery Team did not want to produce any more young.
Full-sibling pair 800/898 (the Leesburg pair and parents of "Lucky")
have already fledged 2 chicks into the population. The Recovery Team
had decided that if possible, it would be good to prevent the pair from
raising any more of their own offspring. However, to capitalize on their
experienced parental skills, the Team approved the substitution of an
egg from a more genetically valuable pair. This year the pair chose
a sub-optimal nest site that would have required them to cross paved
roads to travel with a chick, so their egg was collected on March 1st
with the hopes that the disturbance at the nest would induce them to
move to a new marsh for any re-nesting attempts. The collected egg was
transported on March 2nd to the Freeport McMoRan Audubon Species Survival
Center in Belle Chasse, Louisiana where the chick hatched the same day.
The chick will be used as an imprint model and gave the Center their
first experience raising a whooping crane chick. As predicted, pair
800/898 re-nested, but back in the same small marsh. Biologists moved
one of the eggs from the re-nest into the nest of 513/1134, hoping to
give them experience hatching and raising young. They did hatch the
egg and raised it for about 10 days before the chick disappeared. The
Leesburg pair nested a third time, with an egg moved on May 19th into
their nest from a captive pair from the Species Survival Center, but
it failed to hatch.
As part
of an infectious bursal disease study, blood was periodically collected
from sentinel chickens at the whooping crane release site. Kristi Candelora
(as part of her Masters degree project) also collected blood from wild
turkeys and sandhills, with 160 samples submitted. Analysis of the samples
is ongoing. It is hoped her study will provide a better understanding
of the prevalence and possible etiology of the disease in Florida and
its effect on whooping cranes. Dr. Marilyn Spalding presented a paper
at the joint meeting of the Wildlife Disease Association and the American
Association of Zoo and Wildlife Veterinarians in San Diego, California
entitled "Infectious Bursal Disease virus associated with a wasting
syndrome in released whooping cranes in Florida" detailing the
results to date.
WHOOPING
CRANE EASTERN PARTNERSHIP (WCEP)
The spring, 2004 whooping crane migration in the eastern U.S. was
full of adventures. In April, one crane in a group of eight blown too
far to the east by unfavorable winds hit a power line in North Carolina
after being flushed by close approach of people, but continued in migration
with the group. Also, one crane was noted with the ragged top of an aluminum
drink can securely affixed over its mandibles so that they could not be
opened. A costumed caretaker captured the crane, removed the can top,
and released her back into the group. In the spring, after a lengthy stopover
in Ohio, eight birds spilt into groups of 5 and 3 and ended up in Michigan
with their migration blocked by Lake Michigan. Cranes will not cross such
a large body of water. They wandered extensively along the lake shore.
One group of 5 flew 140+ miles north and spent considerable time near
the Huron-Manistee National Forest. Three of the Michigan cranes made
it around the southern end of Lake Michigan and returned to Wisconsin
by July 28th. One second-year bird last seen heading north from Lake County,
Florida on April 6th made it to Kalamazoo County in southcentral Michigan.
A total of 6 birds summered in different parts of Michigan as a group
of 5 and a single. One of the birds in the group of 5 died with cause
of death still being investigated. The WCEP partnership held lengthy discussions
with much difference of opinion about whether the birds in Michigan should
be captured and transported back to central Wisconsin. The majority of
the Project Direction Team felt these birds would return to Wisconsin
in subsequent years so that capture was not necessary. Others felt it
was better to maximize chances to establish a group in a core reintroduction
area by moving them back to Wisconsin. A policy was formulated that until
more is learned about future movements of such "wayward" birds,
the birds would be left in place if they were in suitable habitat and
remained wild and not conditioned to people. In total, 30 of the 36 eastern
migratory whooping cranes migrated back to central Wisconsin. One bird
with a malfunctioning radio that summers by herself near Horicon NWR in
Wisconsin was not seen all summer but re-surfaced in October near Horicon.
Breeding
is not expected until possibly next year, but one pair approaching breeding
age acted territorial at Necedah NWR. Hopefully, within a year or two
there will be whooping cranes breeding again in the Midwest after being
absent for more than a century. Survival of more than 80% for the reintroduced
cranes is outstanding and a tribute to the dozens of dedicated folks involved
in this program, including Operation Migration, the International Crane
Foundation, Necedah and Chassahowitzka NWRs, the state DNRs along the
route, the Natural Resources Foundation of Wisconsin, the National Fish
and Wildlife Foundation, many state, Federal, and NGO biologists, and
many landowners and private donors that have contributed to this program
through funding, aerial tracking, or allowing the cranes and accompanying
ultralight airplanes to utilize their property. WCEP's annual report was
sent to the 20 Flyway States in April to keep multiple partners informed
of the reintroduction's enormous progress.
Sixteen chicks
produced at Patuxent received the full regimen of exposure to airplane
engine noise and trike conditioning. One of the chicks came from an egg
laid at ICF and flown to Patuxent for hatching. Three other eggs hoped
to increase cohort numbers by shipping them from ICF and San Antonio Zoo
were unsuccessful due to hatching problems. Three additional chicks allocated
to WCEP were pulled from the program for health reasons, with one currently
surviving. Chicks were shipped to Necedah NWR in 3 separate cohorts (7
on June 16th, 6 on June 30th, and 3 on July 15th) because of the 47-day
age difference between the young. All transportation was carried out with
the donated aircraft and expertise of Windway Corporation. Two of the
whoopers shipped to Necedah had washers in their gizzards that had to
be removed. One ultralight chick swallowed a plastic tie wrap that was
removed at the U. of Wisconsin-Madison, but then fractured its leg after
being transported in a crate following surgery and had to be euthanized.
That left 15 whoopers in the ultralight training program. One of those
had abnormal feather growth which hindered its flight ability until the
feathers grew back late in the summer. However, this bird missed so much
training that it behaviorally was not a good candidate for the ultralight
migration and may be released solo into flocks of older whooping cranes
in the fall to see if it will follow them to Florida.
Much work
was done repairing the pens at training site # 1 at Necedah NWR in preparation
for the arrival of the cohorts. Also, a mobile trailer was re-modeled
on the inside to serve as an isolation health care facility at Necedah
NWR for any injured birds. Wisconsin's Milwaukee County Zoo has agreed
to become a rehabilitation provider for WCEP birds. They will hold drop-out
birds until a permanent home in captivity can be found for them. The Zoo
may also be interested in building a facility for putting a permanent
pair on display.
In April,
a 1-hour television special filmed by the British Broadcasting Company
that included much footage of the WCEP project aired nationwide on the
PBS show "Nature". The WCEP team also started talks with filmmaker
Stephen Low wanting to do an IMAX film on the project. The IMAX team has
been given the green light for project planning. Mike Day, Executive Director
of the Minnesota Science Museum IMAX Theater and Jim Mallman, President
of Watchable Wildlife, will be actively pursuing $6-7 million to finance
the film. The story line will focus on the whooping crane reintroduction
and how the refuge system makes it possible. Key participants made a reconnaissance
trip July 21-23 to Wisconsin to meet WCEP personnel, see about filming
possibilities that mustn't interfere with the reintroduction, and do project
planning.
Meetings
with over 30 participants were held at Necedah NWR September 20-22 to
plan for the upcoming migration and all future aspects of WCEP. At the
end of September, there were 35 whooping cranes in the eastern migratory
flock. Fourteen additional juveniles were poised to make their first migration
south behind an ultralight which began on October 10th.
CAPTIVE
FLOCKS
SPECIES
SURVIVAL CENTER, BELLE CHASSE, LOUISIANA
The
Audubon Center for Research of Endangered Species / Freeport McMoRan
Audubon Species Survival Center is now referred to as the Research Center
or Species Survival Center. The former acronym of ACRES is no longer
being used.
On March
2nd, an egg from the wild whooping crane pair (800/898) in Florida was
picked up and transported to the Species Survival Center in Belle Chasse
where it hatched. This gave them experience hatching and raising their
first whooping crane. Since the parents are a brother-sister pair, the
chick with inbred genetics was raised and will be used only as an imprint
model for other breeding pairs at the Center. One whooping crane pair
at the Center laid a fertile egg in 2004. The egg was transported to
Florida on May 19th and placed in the wild in a re-nest of the Leesburg
pair. Unfortunately, the egg did not hatch.
The Audubon
Nature Institute received a $1.2 million Congressional appropriation
through the USFWS to build a new whooping crane breeding facility for
10 pairs of whooping cranes and a chick rearing facility at the Species
Survival Center. Ground clearing began during the summer and construction
contracts granted. The Species Survival Center currently has 3 pair
of whooping cranes, 2 single birds awaiting suitable genetic fits for
mates, and 1 juvenile. Ultimately, they hope to produce chicks for a
whooping crane reintroduction in Louisiana and to do research on propagation
issues. A meeting was held April 8th at the Center to fine tune the
design of the new breeding facility. Guests brought in to contribute
their experience included George Archibald, Jane Chandler, Sara Simmonds,
and Tom Stehn. The meeting helped the center finalize plans.
AUDUBON
ZOO, NEW ORLEANS
Audubon
Nature Institute dedicated its new whooping crane exhibit on September
22 that holds a display pair. The new exhibit with a large pool and
upland terrain is in a prominent location near the zoo entrance. The
zoo also resurrected a bronze sculpture of a crane that used to be near
where Josephine had been exhibited. The Audubon Zoo had whooping cranes
on display between 1941 to 1975, including Josephine, one of only 2
survivors of the Louisiana population. Josephine hatched the first whooping
crane chick in captivity. She produced 52 eggs with 3 surviving chicks.
Audubon's whooping cranes were sent to the International Crane Foundation
in the 1970's. The 2 cranes currently on exhibit came from San Antonio
and Patuxent.
CALGARY
In 2004, the captive flock at the Devonian Wildlife Conservation
Center in Calgary, Alberta produced 22 eggs, but only 3 were fertile
(all from the pair Hope and Chinook) despite starting a program of artificial
insemination on some of the pairs. One female laid for the first time.
Plans were formulated to ship two fertile eggs at the end of April to
Patuxent for the WCEP ultralight project, but there were never 2 eggs
of similar age so no shipment was done. All 3 whooper chicks were parent-reared,
and 6 different whooper pairs get some good parenting and chick-rearing
experience this year, 3 with whooper chicks, and 3 with sandhill chicks.
Two chicks were shipped to ICF on September 30th destined for release
in Florida's nonmigratory flock. A third chick was held back because
of a wing problem and will fill out the pair on display at the Calgary
Zoo.
Two summer
interns working at the Conservation Center both did projects with the
whooping cranes, one involving various types of environmental enrichment
for the birds, and one involving assessing parenting abilities of 2
different pairs of whoopers. They are both writing articles that will
be published next year.
HOMOSASSA
SPRINGS WILDLIFE STATE PARK, FLORIDA
In
response to the threat of multiple hurricanes, the Homosassa Springs
State Wildlife Exhibit evacuated their single whooping crane on several
occasions to Gainesville where it was held in a 5 x 8 foot pen in a
concrete building. They are scheduled to get a male crane to form an
exhibit pair as soon as a genetically surplus bird becomes available.
INTERNATIONAL
CRANE FOUNDATION (ICF)
In 2004, the 32 captive whooping cranes at ICF in Baraboo, Wisconsin
had a very good year. The flock at ICF laid 40 eggs from 8 different
females. Of these, 21 eggs were fertile. Only 11 eggs hatched due to
poor hatchability. Four chicks were raised for the Florida nonmigratory
flock, and 3 chicks were kept as genetic holdbacks to re-build the captive
flock. Two eggs were shipped to Patuxent for use in the WCEP project,
but one chick developed health problems and had to be euthanized. The
other chick is currently migrating behind the ultralight towards Florida.
Two pairs from which future production is hoped for showed progress
with nest building and incubating dummy eggs, and one of the pairs raised
a sandhill chick. ICF also received shipment of 2 juveniles from Calgary
to socialize into a cohort for Florida.
ICF is
currently busy with construction of the new Isolation Chick-rearing
Facility at the back of the property. A road, well, and electricity
have been put in, and foundation work is underway. They expect to have
the facility ready for the next breeding season. ICF will be converting
the old Chick House (in use since 1984) to public education functions,
featuring live video connection to the iso facility via fiber optic
cable so that the public can see chicks being reared by our costumed
staff.
LOWRY
PARK ZOO
Meetings were held and plans formulated for the Lowry Park Zoo to
build a whooping crane socialization facility at their remote Green
Swamp location where they also keep red wolves. This facility will allow
whooping crane cohorts to be formed and socialized in Florida, and reduces
the disease risk at other crane breeding facilities. A donor was found
for the whooper socialization pens, although additional funds are needed.
This facility will hopefully be in place in fall, 2005.
MILWAUKEE
COUNTY ZOO, WISCONSIN
ICF
veterinarian Dr. Barry Hartup arranged with the Milwaukee County Zoo
to do rehabilitation on any injured whooping cranes in Wisconsin and
provide temporary housing for cranes to be transferred to captivity
from release projects. The zoo was very willing to help the whooping
crane recovery program. They also expressed interest in someday having
a pair on display.
USGS
PATUXENT WILDLIFE RESEARCH CENTER (PATUXENT)
In 2004, Patuxent produced 54 whooping crane eggs from 13 pair.
Of the 54 eggs, 23 were fertile and 21 hatched. Three new pairs came
into production, with one female laying for the first time at age 16.
Two eggs were received from ICF and two from the San Antonio Zoo. Both
eggs from ICF hatched, but one chick had to be euthanized because of
leg problems. The other chick was shipped as part of the WCEP project.
Of the two eggs from the San Antonio Zoo, only one hatched and that
chick lived for only 12 hours. Sixteen chicks were trained at Patuxent
to approximately 40-50 days of age and then shipped to Necedah for the
WCEP project. Three chicks were retained for genetic representation
and one because of a beak injury.
Biologist
Dr. David Ellis announced his retirement in March. Dave made many contributions
to crane recovery with his innovative thinking and tremendous energy.
He will be missed. Robert Doyle from the Baltimore Zoological Park and
Charles Shafer from ICF were hired as full-time permanent Biological
Technicians to work with the crane program. In October, Patuxent advertised
to fill a geneticist position formerly held by Dr. Gee,
Arrangements
are being made for the Whooping Crane Recovery and Whooping Crane Captive
Management meetings that will be held at Patuxent February 8-10, 2005.
SAN
ANTONIO ZOO
Both of the zoo's fertile eggs from their pair on exhibit (Tarzan
and Jane) were transported to Patuxent on April 21. One egg pipped,
but died during hatch. The second egg also didn't make it.
VICTORIA
ZOO
The
Victoria Zoo in Texas, approved to put a pair of whooping cranes on
display, put out a news release in April about their hopes for getting
a pair. They plan to build a whole new facility on higher ground above
the river floodplain. The new director for the zoo is Clarence Wright.
WHOOPING
CRANE NUMBERS / September 30, 2004
| Wild
Populations |
Adult |
Young |
Total |
Adult
Pairs |
| Aransas/Wood
Buffalo NP |
193 |
40* |
193* |
67 |
| Rocky
Mountains |
0 |
0 |
0 |
0 |
| Florida
non-migratory |
74 |
1 |
75** |
13 |
| Wisconsin/Florida
migratory |
35 |
15*** |
50 |
0 |
| |
|
|
|
|
| Subtotal
in the Wild |
302
|
16 |
318 |
77 |
|
*40
chicks fledged in Wood Buffalo in mid-August but are not counted
until they arrive
at Aransas in fall, 2004.
**
This number (birds being monitored plus 5) is an estimate since
not all whooping
cranes in Florida can be located on a regular basis.
***
These are chicks hatched at Patuxent and currently being flight-trained
in Wisconsin.
|
| Captive
Populations |
Adult |
Young |
Total
|
Breeding
Pairs |
| Patuxent
WRC, Maryland |
50
|
4
|
54
|
13
|
| International
Crane Foundation, WI |
32
|
7
|
39
|
10
|
| Devonian
Wildlife Conservation Center/Calgary |
18
|
3*
|
21
|
6
|
| Species
Survival Center, Belle Chasse |
8
|
1**
|
9
|
1
|
| New
Orleans Zoo |
2
|
0
|
2
|
0
|
| San
Antonio Zoo, Texas |
6
|
0***
|
6
|
2
|
| Homosassa
Springs Wildlife State Park |
1
|
0
|
1
|
0
|
| Lowery
Park Zoo, Tampa, Florida |
2
|
0
|
2
|
0
|
| |
|
|
|
|
| Subtotal
in Captivity |
119
|
15
|
134
|
32
|
| |
|
|
|
|
| TOTALS
(Wild + Captive) 318 + 134 = 452 |
|
|
|
|
|
* Two
of the 3 chicks were shipped to ICF on September 30th for socialization
into a cohort for FL.
**
Egg came from the wild Florida nonmigratory flock.
|
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