3.+Class;+Aves

4. Order; Anseriformes There are about 150 species of Anseriformes. All species are highly adapted for life at the water surface. All have webbed feet. 4. Order; Charidriiformes There are around 350 species of Charidriiformes. They have three forward pointing toes with toe 3 and 4 fused at the base, although in some kingfishers this is missing. 'Corax' is from the latin meaning raven and 'formes' meaning form. There are aroung 100 species in this order. 4. Order; Ciconiiformes This order includes large wading birds with large legs and long bills. 4. Order; Columbiformes 4. Order; Coraciformes Coraciformes are usually quite colourful birds. They have one or more toes fused together though in some this is missing. The name comes from the Latin 'corax' meaning raven and 'formes' meaning form. There are around 100 species in this order. 4. Order; Falconiformes Birds in this order are diurnal, that is they are active during the day and sleep at night. There are around 290 species in this order. They have strong legs with raptor-like claws with an opposable hind claw. Almost all are carnivores. 4. Order; Gruiformes Gruiformes means crane-like. Gruiformes are an unusual order with many birds being lumped here as they don't fit anywhere else. 4. Order; Passeriformes Passeriformes are sometimes known as perching birds or song birds. Over half of all bird species are found withing this order, some 5,000 in total. 4. Order; Pelecaniformes Birds in this order are defined as birds with webbed feet that have four toes. Most have a bare throat patch called a gular patch. Their nostrils have evolved into slits that serve no purpose, forcing them to breath through their mouths. They feed on marine life. 4. Order; Podicipediformes Podicipediformes are freshwater diving birds.When migrating some do visit the sea. There are 22 species in this order. 4. Order; Psittaciformes Psittaciformes are parrots. There are around 372 species. Parrots have strong beaks, a curved bill, strong legs with clawed feet on which they stand upright.