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daalchawal@yahoo.com (Shazra Mian) sent this comment:

Whooping Crane

Whooping Cranes are known for their loud whooping cries which can be heard as the birds migrate between winter and summer homes. After elaborate coutship rituals, cranes build nests of vegetation on moist ground. Usually two eggs are laid, but only one survives to fly south for winter. Attempts are being made to breed the whooping cranes in captivity and to renitroduce eggs into nature by placing them in the nests of sandhill cranes, who act as foster parents. Although some success has been achieved, the long-term fate of the Whooping Crane uncertain.