Members of the Family Phalacrocoracidae are known as cormorants. The majority of cormorants have mainly dark plumages, but some are nicely patterned and have areas of colored skin on the face and feet, which typically becomes more brightly colored during the breeding season. Their bill is long, thin, and sharply hooked. Their feet have webbing between all four toes. Cormorants are coastal rather than oceanic birds, and some use freshwater habitats.
All are fish-eaters. They dive from the surface. Some species make a characteristic half-jump as they dive, presumably to give themselves a more streamlined entry into the water. Under water cormorants propel themselves with their feet, though some also use their wings. Cormorants are colonial nesters, using trees, rocky islets, or cliffs. The eggs are a chalky-blue color. There is one genus and three species of cormorants known to occur in Peru. Photo: ©Geoff Gallice.