Hatchlings for Florida's Non-migratory Flock
Fish and Wildlife Conservation Commission (FWC) broke this exciting news
on March 29, 2000!
CRANE REINTRODUCTION PRODUCES ITS FIRST HATCHLINGS
trying to save an endangered species from extinction, success sometimes
comes in baby steps. Florida's attempts to reintroduce whooping cranes
yielded its first two hatchlings March 16-18, and wildlife biologists
are ecstatic over this first indication that the project can succeed.
To protect the young birds, researchers are keeping the location of their
nest confidential, but it's somewhere in central Florida. The Florida
Fish and Wildlife Conservation Commission (FWC), U.S. Fish and Wildlife
Service (FWS), U.S. Geological Survey, Patuxent Wildlife Research Center
and the International Crane Foundation undertook the reintroduction project
Researchers have released 183 whooping cranes into the wild during the
past seven years. Mortality was high at first, but 65 of the birds are
still alive...67 counting the new chicks.
In April 1999, state and federal wildlife biologists were encouraged when
they found two fist-sized, beige eggs with brown splotches in one of the
whooping crane nests. The eggs indicated that wild whoopers had finally
nested in the United States for the first time this century--possibly
for the first time ever in Florida.
Unfortunately, but not unexpectedly, the eggs vanished a few days later.
Much of parenting is a learned process in whooping cranes, and biologists
expect losses of eggs and chicks as new whooping crane parents learn the
skills it requires of them.
"We've had better luck this year (2000)," said wildlife biologist
Brian Millsap. "We have confirmed two hatchlings. We also have 14
other pairs of whoopers under observation."
Millsap said the first 10-14 days after hatching are dangerous times for
hatchlings. He said mortality rates among hatchlings level off after that
until the hatchlings learn to fly when they are about 75 days old.
"By the time they are about 90 days old, they will have about the
same mortality rate as the parents," he said. "Scientists expect
the chicks to remain with the parents for one year."
Both parent birds are tagged to enable researchers to track their movements
and behavior. Scientists do not plan to tag the chicks until after they
Whooping cranes are an endangered species, although the Florida population
is designated as experimental due to its reintroduced status and to facilitate
management of the flock. Wildlife officials hope to down-list the species
to "threatened species" status by
25 nesting pairs of wild whoopers in Florida;
at least 40 nesting pairs in the only remaining wild population that
nests in Manitoba, Canada; and
another 25 nesting pairs in another location.
Partners in the Florida project plan to continue releasing 19-48 whoopers
per year until the whooping crane population in Florida stabilizes at
This! Journaling Questions
1. Why do
you think wildlife officials have planned to establish whooping cranes
as described : establishing 25 nesting pairs of wild whoopers in Florida;
maintaining at least 40 nesting pairs in the only remaining wild population
that nests in Manitoba, Canada; and establishing another 25 nesting pairs
in another location? What benefits are gained by having the new populations
in widely separated geographic locations?
be some predators or dangers for whooping cranes in Florida?
3. What eventually
happened to these chicks?