Fish and Wildlife Research Institute biologists are partners in two
multi-agency efforts to re-establish whooping cranes to the eastern
United States.
Whooping cranes occurred naturally in the eastern
United States until the mid-twentieth century, and there are
records of whooping cranes in Florida until the 1930s. The Florida
Fish and Wildlife Conservation Commission's Fish and Wildlife
Research Institute (FWRI) is currently involved in two multi-agency
projects to restore the whooping crane to its former range. Efforts
by FWRI biologists focus specifically on areas in the southeast,
mainly in Florida.
Project: Reintroduction of non-migratory whooping
cranes to Florida
This project was originally designed to introduce a flock of
non-migratory whooping cranes to Florida. From 1993 to 2004,
biologists released 289 captive-raised whooping cranes into central
Florida. Due to problems with survival, reproduction, and other
challenges, a decision was made to stop releasing cranes into the
non-migratory flock. However, studies of the surviving members of
this flock will continue in order to provide more knowledge about
the challenges they are facing. For more information on the changes
to this project view
the news release on these changes (PDF file-68KB).
Project: Reintroduction of migratory whooping cranes
to the eastern United States
FWRI is also involved in a project to restore migratory whooping
cranes to the eastern United States. Each winter since 2001,
whooping cranes have been led by ultra-light aircraft from
Wisconsin to Florida. Once these birds are taught the migration
route from north to south, they will make the journey on their own.
To learn more about the migratory project, visit http://www.bringbackthecranes.org/.
Whooping Crane Recovery
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Normal range of
non-migratory whooping cranes in Florida
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The Whooping Crane Recovery Plan recommends that in order for
whooping cranes to be "down-listed" from endangered to threatened
status, there must be 40 nesting pairs in the current
self-sustaining population and 25 nesting pairs in two additional
locations, or 100 nesting pairs in the current self-sustaining
population and 30 nesting pairs in one additional location. The
reintroductions in Florida represent efforts to establish
additional populations.
Currently, there is only one self-sustaining flock of whooping
cranes in North America that migrate annually. This flock breeds in
Canada and winters along the gulf coast of Texas.