Great Cormorant

Great Cormorants in North America inhabit rocky sea coasts throughout the year. During breeding season, they nest on rocky islands or cliffs, usually on the ground but sometimes in stunted conifers.
Like other cormorants, the Great Cormorant feeds mainly on fish, supplemented in freshwater by crustaceans, various aquatic insects and frogs. The Great Cormorant is an excellent swimmer and captures its food in shallow underwater dives, normally lasting up to one minute.
Gulls, crows and jays and grackles are probably significant predators of cormorant eggs and chicks. Coyotes, foxes and raccoons may also prey on cormorant chicks. Adult cormorants and chicks are susceptible to predation by bald eagles, and occasionally by great horned owls, caiman and brown pelicans.
Length can vary from 70 to 102 cm (271⁄2 to 40 inches) and wingspan from 121 to 160 cm (471⁄2 to 63 inches).