Whooping Crane Eastern Partnership
2005 Annual Report
Summary
- Go here for the complete 61
page report (PDF)
We had an
excellent year in 2005. While we had our ups and downs we succeeded as
a partnership to expand the growing migratory flock by 23 birds
more than a 50% increase to the total population - and that wasnt
the only good news! We also saw the first nests built at Necedah National
Wildlife Refuge and the Meadow Valley State Wildlife Area this past spring,
and to top it off 2 eggs were laid. Unfortunately these first eggs were
lost; probably to predators. Newly formed breeding pairs of Whooping cranes
need some experience to get it right. We are hopeful there will be a fast
learning curve for our new parents and that we will see some chicks this
coming spring, a possibility we are all very excited about.
There are
currently 7 pairs that have formed. Our field biologists are predicting
we could have as many as 12 pairs formed by this spring. The migration
behavior has been outstanding for most birds, flying true from the release
site at Necedah National Wildlife Refuge and other wetlands in central
Wisconsin, to the wintering sites in Florida. The few birds that flew
off course have generally ended up in the right place. Those that didnt
were captured and moved by our exceptional field teams. A good example
is bird 9-03 who strayed off course last spring and ended up in New York.
This bird also sojourned in Canada, perhaps to pay tribute to our Canadian
partner, Operation Migration.
9-03 was
not heard from for much of the summer, but eventually our tracking team
found her in North Carolina and returned her to Florida to complete the
migration. I saw her at the Florida pen site and I can say she looks very
beautiful and is doing fine. Our hope is that this course correction will
allow her to migrate north this spring and end up back at the release
site in Wisconsin with a better chance of finding a mate.
The Class
of 2005 turned out to be very good birds. Hats off to the chick rearing
facilities at the International Crane Foundation and the USGS Patuxent
Wildlife Research Center for delivering so many healthy birds in 2006.
Our Health Team made sure they were in great shape and Operation Migration
did their magic to train and lead the birds on their annual migration.
We started the migration with 20 birds and ended it with 19 birds. This
is a testament to the skills of the pilots and bird handlers of our field
teams.
In 2005 we
also began an experimental program called direct autumn release
(DAR). This program involves releasing chicks with older Whooping cranes
with migration experience. An additional 5 birds were allocated to this
historic release, and project staff from the Fish and Wildlife Service
and the International Crane Foundation worked with the chicks during the
spring and summer to prepare them for their unassisted migration in the
fall.
Unfortunately,
one chick was lost to an early accident, but the 4 remaining DAR birds
continued on with the program. These birds began migration in November.
Two wintered in Tennessee and two in Florida. We will continue to monitor
the DAR birds and evaluate this technique. It is our hope that this supplemental
method will allow us to build the growing flock at a faster rate.
Every year
has its ups and downs and 2005 was no exception. With a project of this
scope it is impossible for everything to go perfectly no matter how hard
we try. Five birds were lost due to heath concerns or accidents. In addition,
we did have to recapture a few birds that had strayed off the migration
route for two consecutive years. Early in the project we want the birds
to stay in proximity to each other so there is a better chance of pairs
forming. As the flock increases, and natural reproduction occurs, we will
be more likely to allow birds to expand their movements into new territory.
Funding was
a serious problem in 2005. With the pressures on the U.S. economy and
other financial stresses in the world, it was very hard to put the needed
funding together. This was felt by all organizations involved in the partnership.
Our non-profit partners felt it the most since almost all of their activities
require that funding be raised each year from scratch.
At one point,
one of our key partners, Operation Migration, had to put out an emergency
appeal for support. This was very stressful to all of us as it occurred
during the migration. We dont need our pilots worrying about funding
while they focus their tremendous efforts to keep the bird and themselves
safe in the air. It is safe to say that all partners are feeling the pinch.
Our fund raising partners, including the National Fish and Wildlife Foundation
and the Wisconsin Natural Resources Foundation, came through with contributions
and matching funds that really made a difference in keeping the projects
head above water, and for this we are very grateful. Many
other donors and private individuals also came forward to help us get
through the year.
Our overall
budget for all partners is in the range of 1.6 million dollars per year.
With the current economic stressors we have seen a tendency for some contributors
to withdraw support, believing that with the size of the partnership that
others will pull up the slack. Its the someone else will certainly
fix it syndrome. The bottom line is we need continuing support from
all of our partners and supporters each year to be able to accomplish
our project goals.
Our project
is evolving. Our early efforts were aimed primarily at training birds
to follow ultralight aircraft using isolation protocols to retain their
wildness, and getting the birds to learn the migration route and return
to the release site. We now have proven that this can be done safely with
the birds retaining acceptable wildness. The past few years of the project
have been focused on refining chick rearing and ultralight training techniques,
and increasing the numbers of our migrating flock to form a critical mass.
We are now
entering the next stage of the project. The annual ultralight-led migration
flights to increase the size of the population are still critically important,
but many of our birds have now reached breeding age and we must gear up
to assist the new parents in protecting their nests as well as to monitor
reproduction. A new round of intense discussions are underway regarding
how best to protect the breeding pairs, and to monitor the chicks including
banding protocols. We will look to the Florida Fish and Wildlife Commissions
experience with their non-migratory flock for advice. After all they were
first to hatch a wild chick in Eastern North America----a chick called
Lucky.
The direct
autumn release project is also a new direction. With our growing flock
of experienced birds migrating, it is now time to see if we can train
chicks to follow the older birds. We do not see this replacing the ultralight-led
migration technique any time soon. This proven technique will remain the
primary method of reintroduction as we implement and test the direct autumn
release technique over the next 5 years.
Another direction
in the evolution of the project is to take a closer look at the genetic
makeup of the WCEP flock. Since all Whooping cranes in existence today
came from only 15 birds, there is some concern about genetic viability.
It is crucial that we do our best to ensure that birds which can best
sustain the genetic health of the species are added to the WCEP flock.
WCEP has requested the assistance of geneticist Dr. Ken Jones, the flock
managers at International Crane Foundation and Patuxent Wildlife Research
Center, and the Whooping Crane Recovery Team, in developing strategies
to maintain and improve the genetic health of the flock. We plan to use
an adaptive approach that proceeds over a number of years
with the goal of increasing the genetic viability of the flock. Birds
that will move us in this direction will be paired in captivity, and their
progeny released to the WCEP project. It is equally important to maintain
significant numbers of birds for release each year to offset the impact
of natural mortality, so this will also be taken into account by the Recovery
Team in its allocations and genetic management strategies.
Finally,
with a significant population building in the flyway, it is important
to develop a management plan so that present and future wildlife managers,
conservation organizations, and the public, will have the guidance and
protocols to keep the growing flock healthy and protected. It is also
important to have such guidance in place to ensure compatibility with
human activities and to deal with potential conflicts.
The Wisconsin
DNR is in the process of developing a management plan for Whooping cranes
in that state in full coordination with WCEP, and an opportunity for public
review and input is planned. Once completed, the Wisconsin DNR plan can
serve as a model for other states, and potentially a flyway-wide framework
management plan.
Our WCEP
goals remain the same for the present, that is, to achieve a minimum population
of 125 birds in the eastern migratory population with 25 breeding pairs.
With a current total of 64 birds in the flyway we are half way there in
terms of numbers! And we have 7 pair formed with the potential for up
to 12 pairs this year! Successful breeding of these pairs with fledged
chicks is the next short term goal.
The Patuxent
Wildlife Research Center has done some preliminary demographic analysis
of our population based on our past success. The conclusion is that with
the current average mortality rate of 10% loss each year, it will take
a total of 10 years of releases of at least 20 birds to reach our population
goal. Since we are 5 years into the project this means that if we can
maintain our current success, and if there is successful breeding, we
could reach our project numeric goals by 2010 or 2011.
Of course,
much depends on a number of variables, including unforeseen environmental
protection and reproduction issues. The re-establishment of an ongoing
self-sustaining population will take careful management and monitoring
for many years to come. But the strength of the power of our partnership
is based on the optimism, dedication, hard work, and belief that we can
overcome challenges and barriers; that we can achieve our goal of seeing
this magnificent symbol of the plight of endangered wildlife flying free
in Eastern North America for future generations to enjoy. And we
WILL succeed!
Go here for the complete 61 page report
(PDF)
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