ISIS impact

whooping crane reintroduction
Previously, whooping cranes (Grus americana) were found over much of North America. However, by the mid-20th century, the migratory population had declined to just 16 individuals and the non-migratory population was believed to have disappeared completely.

Because of massive conservation efforts, a self-sustaining population exists today, breeding in Wood Buffalo National Park, Canada and spending the winter in the Arkansas National Wildlife Refuge. A non-migratory population, which now numbers 86 individuals, has been introduced to Kissimmee Prairie in Florida. In addition, a migratory population is currently being established that will summer in Wisconsin and winter in Florida.

The main captive populations exist at Patuxent Wildlife Research Centre, the International Crane Foundation and the Calgary Zoo. These birds and have been used in reintroduction attempts, which have increased the wild population of whooping cranes from just 21 in the 1940s to about 300 today.

Monitoring of these populations is essential to their survival.

source: ARKive 2004, http://www.arkive.org/

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