Birds of prey are apex predators ... Some populations winter in South America and breed in the Arctic tundra. This species has one of the longest migrations of any North American bird.

Reviewed Work: Notes on Little Known Species of South American Birds with Descriptions of New Subspecies by Charles B. Cory Review by: W. S.

Both birds are threatened by hunting and habitat destruction. The southern helmeted curassow is Bolivia’s most threatened bird. The species inhabits only a small area in the eastern Andes Mountains, ...

Great horned owls are adaptable birds and live from the Arctic to South America. They are at home ... They sometimes swallow their prey whole and later regurgitate pellets composed of bone ...