The crane species rescued from the brink of extinction through captive breeding and other conservation work was the whooping crane.
The whooping crane (Grus americana) is North America’s tallest bird and one of only two crane species native to the continent. Hunting and habitat destruction caused a dramatic collapse: by 1941, only 21 wild birds and two captive birds remained. That tiny population became the foundation for a long, difficult recovery effort.
Early captive breeding was far from easy. A female named Josephine and injured birds known as Pete and Crip were among the pioneering captive birds. Josephine and Crip produced the first captive-born whooping crane in 1950, but the chick survived only four days. Decades of work eventually improved hatching, artificial insemination, hand-rearing, and release techniques.
Captive breeding alone did not save the species. Protection from hunting, safeguarding wetlands, discovering the breeding grounds in Canada’s Wood Buffalo National Park, and establishing additional wild flocks were also essential. The species remains endangered, but its population is vastly larger than the 1941 remnant.