Historic
Times for Endangered Whooping Cranes
On the brink of extinction, a flock of only 15 wild migratory Whooping
cranes remained in the early 1940s. Since 2001, with ultralight aircraft
leading the way, a new wild flock of migratory Whooping cranes is being
reintroduced
to
the
eastern
U.S.,
once part of their historic range.
The goal is 25 breeding pairs from 125 birds in Wisconsin by 2020.
This new flock has had limited success in nesting, and the fragile
migratory population still has a rocky road ahead.
Thanks
to the efforts of WCEP’s members, there are now
100 wild adult Whooping cranes in the new flock migrating in
eastern North America. (Photo
Overview) Each
year, new crane chicks are raised in captivity, trained to
migrate with the ultralights, and added to the new eastern
flock. This year's new flock members are called the "Hatch
Year 2011" birds, or the Class of 2011.
We follow their story
from hatching in spring 2011 to the
day
they
complete
their
first
fall
migration at 5 to 6 months of age.
-
How
and why do the baby cranes learn to follow ultralight planes?
-
How
many of the baby cranes will survive their first year?
-
How
much will the endangered population grow with this year's
addition?
-
How
many of the entire flock — hatched from 2001-2011— will
survive this year?
Four
wild-born chicks hatched within
the flock in summer 2011, but
none survived past summer. The flock's only other
wild-born chicks, now ages five (one bird) and one (two birds),
will be migrating south this fall too.
This
year also brings 10 costume-raised chicks to follow experienced
cranes heading south in a program called Direct Autumn Release
(DAR).
Our
fall "Journey
South" Web reports share daily migration progress
as the cranes travel to their winter home in Florida. In
spring, our "Journey
North" updates track these cranes as they travel
back to Wisconsin all on their own. Every year is an exciting
new chapter in the Whooping cranes' return from the brink
of extinction!
*
A western flock of Whooping cranes
is the original, natural wild flock that migrates between Texas
and Canada each year, as it has for eons. We'll follow their
journey north next spring. Some are now wearing GPS tracking
devices!
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