From the Cornell Lab of Ornithology:
"In 1941 there were only 21 Whooping Cranes left: 15 were migrants between Canada and Texas while the rest lived year-round in Louisiana. The Louisiana population went extinct, and all 600 of today’s Whooping Cranes (about 440 in the wild and 160 in captivity) are descended from the small flock that breeds in Texas.
The only self-sustaining population of Whooping Cranes is the naturally occurring flock that breeds in Canada and winters in Texas. Three reintroduced populations exist with the help of captive breeding programs. One of these is migratory: researchers use ultralight aircraft to teach young cranes to migrate between Wisconsin breeding grounds and Florida wintering grounds.
This pair was found near Aransas National Wildlife Refuge in Texas.
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