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Toe arrangement in a bird's right foot. Typical toe arrangements in birds are: Anisodactyl: three toes in front (2, 3, 4), and one in back (1); in nearly all songbirds and most other perching birds. [4] [20] Zygodactyl: two toes in front (2, 3) and two in back (1, 4) – the outermost front toe (4) is reversed.
Webbing and lobation in a bird's right foot. Birds are typically classified as a sub-group of reptiles, but they are a distinct class within vertebrates, so are discussed separately. Birds have a wide span of representatives with webbed feet, due to the diversity of waterfowl. Ducks, geese, and swans all have webbed feet. They utilize different ...
The blue-footed booby (Sula nebouxii) is a marine bird native to subtropical and tropical regions of the eastern Pacific Ocean. It is one of six species of the genus Sula – known as boobies. It is easily recognizable by its distinctive bright blue feet, which is a sexually selected trait and a product of their diet. Males display their feet ...
The Heliornithidae are a small family of tropical birds with webbed lobes on their feet like those of grebes and coots. The family overall are known as finfoots, although one species is known as a sungrebe. The family is composed of three species in three genera.
The seriemas forage on foot and run from danger rather than fly (though they can fly for short distances, and they roost in trees). They have long legs, necks, and tails, but only short wings, reflecting their way of life. Also, they are among the largest ground-dwelling birds endemic to the Neotropics (only behind rheas). [3]
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A number of birds have spurs on their feet or legs, usually formed from the lower portion of the tarsometatarsus bone. Best known are the spurs on chicken, though most galliform birds bear spurs. The spurs are mostly found in males, and used in mating competition or territory defence. Some birds have spurs on the wings rather than the legs.
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