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Whooping crane
The whooping crane (Grus americana) is an endangered crane species, native to North America, named for its "whooping" calls. Along with the sandhill crane (Antigone canadensis), it is one of only two crane species native to North America, and it is also the tallest North American bird species, with an estimated 22–30+ year life expectancy in the wild. After being pushed to the brink of extinction by unregulated hunting and loss of habitat that left just 21 wild (and two captive) cranes by 1941, the whooping crane made a partial recovery through conservation efforts. The total number of cranes in the surviving migratory population, plus three reintroduced flocks and in-captivity, is just over 830 birds as of 2025[update]. This includes about 560 individuals in the remnant population that migrates between coastal Texas, USA, and the Northwest Territories, Canada, which is termed the "Aransas-Wood Buffalo Population" after the protected areas that anchor the population's wintering and breeding ranges, respectively. Additionally, there are about 140 individuals in two reintroduced populations breeding in Wisconsin and Louisiana, USA, and an additional 130 individuals in captivity.
The whooping crane was formally described in 1758 by the Swedish naturalist Carl Linnaeus in the tenth edition of his Systema Naturae. He placed it with the herons and cranes in the genus Ardea and coined the binomial name Ardea america. Linnaeus based his description in teh accounts of two English naturalists. In 1729–1732 Mark Catesby had described and illustrated the whooping crane in his The Natural History of Carolina, Florida and the Bahama Islands, and in 1750 George Edwards had described and illustrated the crane using a preserved specimen that had been brought to London from the Hudson Bay area of northeast Canada by James Isham, an employee of the Hudson's Bay Company. Linnaeus specified the type locality as North America but this has been restricted to the Hudson Bay. The whooping crane is now one of eight species placed in the genus Grus that was introduced in 1760 by the French zoologist Mathurin Jacques Brisson. There are no recognised subspecies.
At one time, the range for the whooping crane extended throughout midwestern North America as well as southward to Mexico. By the mid-20th century, the muskeg of the taiga in Wood Buffalo National Park, Alberta and Northwest Territories, Canada, and the surrounding area had become the last remnant of the former nesting habitat of the Whooping Crane Summer Range. However, with the recent Whooping Crane Eastern Partnership Reintroduction Project, whooping cranes nested naturally for the first time in 100 years in the Necedah National Wildlife Refuge in central Wisconsin, United States, and these have subsequently expanded their summer range in Wisconsin and surrounding states, while reintroduced experimental non-migratory populations have nested in Florida and Louisiana. However, the reintroduction in Florida has been halted and is considered a failure as a result of high adult mortality, low juvenile recruitment, and high rates of habitat loss
Whooping cranes nest on the ground, usually on a raised area in a marsh. The female lays 1 or 2 eggs, usually in late-April to mid-May. The blotchy, olive-coloured eggs average 2½ inches in breadth and 4 inches in length (60 by 100 mm), and weigh about 6.7 ounces (190 g). The incubation period is 29–31 days. Both parents brood the young, although the female is more likely to directly tend to the young. Usually no more than one young bird survives in a season. The parents often feed the young for 6–8 months after birth and the terminus of the offspring-parent relationship occurs after about 1 year.
Breeding populations winter along the Gulf coast of Texas, United States, near Rockport on the Aransas National Wildlife Refuge and along Sunset Lake in Portland, Matagorda Island, Isla San Jose, and portions of the Lamar Peninsula and Welder Point, which is on the east side of San Antonio Bay.
The Salt Plains National Wildlife Refuge in Oklahoma is a major migratory stopover for the crane population, hosting 60-75% of the species annually.
As many as nine whooping cranes were observed at various times on Granger Lake in Central Texas in the 2011/2012 winter season. Drought conditions in 2011 exposed much of the lake bed, creating ample feeding grounds for these cranes just as they were taking their autumn migration through Texas.
An adult whooping crane is white with a red crown and a long, dark, pointed bill. However, immature whooping cranes are cinnamon brown. While in flight, their long necks are kept straight and their long dark legs trail behind. Adult whooping cranes' black wing tips are visible during flight.
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Whooping crane
The whooping crane (Grus americana) is an endangered crane species, native to North America, named for its "whooping" calls. Along with the sandhill crane (Antigone canadensis), it is one of only two crane species native to North America, and it is also the tallest North American bird species, with an estimated 22–30+ year life expectancy in the wild. After being pushed to the brink of extinction by unregulated hunting and loss of habitat that left just 21 wild (and two captive) cranes by 1941, the whooping crane made a partial recovery through conservation efforts. The total number of cranes in the surviving migratory population, plus three reintroduced flocks and in-captivity, is just over 830 birds as of 2025[update]. This includes about 560 individuals in the remnant population that migrates between coastal Texas, USA, and the Northwest Territories, Canada, which is termed the "Aransas-Wood Buffalo Population" after the protected areas that anchor the population's wintering and breeding ranges, respectively. Additionally, there are about 140 individuals in two reintroduced populations breeding in Wisconsin and Louisiana, USA, and an additional 130 individuals in captivity.
The whooping crane was formally described in 1758 by the Swedish naturalist Carl Linnaeus in the tenth edition of his Systema Naturae. He placed it with the herons and cranes in the genus Ardea and coined the binomial name Ardea america. Linnaeus based his description in teh accounts of two English naturalists. In 1729–1732 Mark Catesby had described and illustrated the whooping crane in his The Natural History of Carolina, Florida and the Bahama Islands, and in 1750 George Edwards had described and illustrated the crane using a preserved specimen that had been brought to London from the Hudson Bay area of northeast Canada by James Isham, an employee of the Hudson's Bay Company. Linnaeus specified the type locality as North America but this has been restricted to the Hudson Bay. The whooping crane is now one of eight species placed in the genus Grus that was introduced in 1760 by the French zoologist Mathurin Jacques Brisson. There are no recognised subspecies.
At one time, the range for the whooping crane extended throughout midwestern North America as well as southward to Mexico. By the mid-20th century, the muskeg of the taiga in Wood Buffalo National Park, Alberta and Northwest Territories, Canada, and the surrounding area had become the last remnant of the former nesting habitat of the Whooping Crane Summer Range. However, with the recent Whooping Crane Eastern Partnership Reintroduction Project, whooping cranes nested naturally for the first time in 100 years in the Necedah National Wildlife Refuge in central Wisconsin, United States, and these have subsequently expanded their summer range in Wisconsin and surrounding states, while reintroduced experimental non-migratory populations have nested in Florida and Louisiana. However, the reintroduction in Florida has been halted and is considered a failure as a result of high adult mortality, low juvenile recruitment, and high rates of habitat loss
Whooping cranes nest on the ground, usually on a raised area in a marsh. The female lays 1 or 2 eggs, usually in late-April to mid-May. The blotchy, olive-coloured eggs average 2½ inches in breadth and 4 inches in length (60 by 100 mm), and weigh about 6.7 ounces (190 g). The incubation period is 29–31 days. Both parents brood the young, although the female is more likely to directly tend to the young. Usually no more than one young bird survives in a season. The parents often feed the young for 6–8 months after birth and the terminus of the offspring-parent relationship occurs after about 1 year.
Breeding populations winter along the Gulf coast of Texas, United States, near Rockport on the Aransas National Wildlife Refuge and along Sunset Lake in Portland, Matagorda Island, Isla San Jose, and portions of the Lamar Peninsula and Welder Point, which is on the east side of San Antonio Bay.
The Salt Plains National Wildlife Refuge in Oklahoma is a major migratory stopover for the crane population, hosting 60-75% of the species annually.
As many as nine whooping cranes were observed at various times on Granger Lake in Central Texas in the 2011/2012 winter season. Drought conditions in 2011 exposed much of the lake bed, creating ample feeding grounds for these cranes just as they were taking their autumn migration through Texas.
An adult whooping crane is white with a red crown and a long, dark, pointed bill. However, immature whooping cranes are cinnamon brown. While in flight, their long necks are kept straight and their long dark legs trail behind. Adult whooping cranes' black wing tips are visible during flight.
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