The Pelecaniformes are an order of medium-sized and large waterbirds found worldwide. They are distinguished from other birds by the possession of feet with all four toes webbed (totipalmate). Most have a bare throat patch (gular patch). There are approximately 57 species.

They feed on fish, squid or similar marine life. Nesting is colonial, although birds are monogamous, and the young are born helpless — in contrast, for example, to many waders.

• Pelecanidae: pelicans. Very large birds with throat pouches in which they catch and store fish while hunting.
• Sulidae: gannets and boobies. Medium to large species which hunt by diving from the air into the sea (plunge diving). Long wings and bills, often coloured feet.
• Phalacrocoracidae: cormorants. Medium to large with hooked bills and usually black or similar dark plumage. Plumage is not fully waterproof.
• Fregatidae: frigatebirds. A group of five closely related large birds with black and white plumage, very long wings, and parasitical hunting habits. Red throat patches are inflated in display.
• Anhingidae darters. Another small closely related group of four species, with long bills, snake-like necks and the ability to swim with their body submerged. Plumage is not fully waterproof.
• Phaethontidae: tropicbirds. Medium-sized birds, more marine than most of the other pelecaniformes. Adults have long central tail feathers and no gular patch.
• Plotopteridae: plotopterids. An extinct group of penguin-like seabirds.

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Royal Alberta Musem: Eggs of the World Menu: Struthioniformes, Casuariiformes, Tinamiformes, Pelecaniformes - http://shar.es/1qW2T #Oology
xiane (Xiane) Wed, 23 Sep 2009 15:48:21 -0000
Royal Alberta Musem: Eggs of the World Menu: Struthioniformes, Casuariiformes, Tinamiformes, Pelecaniformes - http://shar.es/1qW2T #Oology

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