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Florida Boardwalk Animal Fact Sheet
WHOOPING CRANE
Grus americana

Range:
North America, from Canada to Florida In late April, cranes arrive at their breeding area in Wood Buffalo National Park, which extends into northeast Alberta from the N.W.T. By the end of September, the whoopers leave for the nearly 2,500 mile flight south to the Aransas National Wildlife Range in Texas. By gliding on wind currents, they can stay aloft for 10 hours and cover up to 460 miles. A non-migrating flock of approximately 100 birds lives year-round in the central Florida Kissimmee region. Since 2001, an ultra-light led flock has established a migration route from Wisconsin to Florida's Chassahowitzka National Wildlife Refuge.

The Aransas range in Texas is protected as is the whoopers' last breeding area in Wood Buffalo Park. However, Aransas is next to an intercoastal waterway with heavy commercial barge traffic. Wildlife biologists want to establish new populations to ensure the species couldn't be wiped out by an oilspill there.

Since 1967, surplus eggs from Wood Buffalo Park have been hatched and reared in captivity. There are now three breeding populations in captivity, two in the U.S. and one at the Calgary Zoo. It is illegal to disturb whooping cranes or their nests.

Habitat: Marshlands
Diet: Cranes eat snails, larval insects, leeches, frogs, minnows, small rodents, and berries. They may scavenge dead ducks, marsh birds or muskrats. During migration, they stop to eat aquatic animals, roots of plants and waste grain in stubble fields. In Texas, they eat shellfish, snakes, acorns, small fish and wild fruit.
Status: Endangered. U.S. Wildlife officials counted 149 whooping cranes in November 1995, the most since the American government began taking censuses in the 1930s. In the late 1800s, there were about 1,500 birds in the aspen parkland and prairie regions of Western Canada and the U.S. As human settlement spread westward, the world population dropped to a low of 14-16 in the 1940s. Conservation efforts since 1938 have resulted in a slow increase. Including those in captivity, and 25 cranes in two other wild populations, there are now 320 whooping cranes in the world.
Approximate Dimensions of Adult: Height: Almost 5 feet. Whoopers are the tallest of all birds in North America.
Weight: 16.5 lbs.
Wingspan: 8.2 feet
Lifespan: Up to 24 years in the wild
Reproduction & Offspring:

Whooping cranes mate for life. In early spring, adults display elaborate courtship rituals, bobbing, weaving, jumping and calling with their mates. The female lays two large eggs and both adults incubate them for the next month. The eggs hatch at different times and the second chick is often pushed out of the nest or starved. Chicks can swim as soon as they hatch. They can fly within 80-90 days.


 

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