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Bird-eating raptors also tend to show greater sexual dimorphism than other raptors, with the females being larger than the males. [ 2 ] Some avian avivores such as the shikra , besra , Eurasian sparrowhawk , and sharp-shinned hawk catch their prey by flying from cover in a tree or bush, taking their prey unawares.
Sometimes known as perching birds, passerines generally have an anisodactyl arrangement of their toes (three pointing forward and one back), which facilitates perching. With more than 140 families and some 6,500 identified species, [ 1 ] Passeriformes is the largest order of birds and among the most diverse clades of terrestrial vertebrates ...
All swifts eat insects, such as dragonflies, flies, ants, aphids, wasps and bees as well as aerial spiders. Prey is typically caught in flight using the beak. Some species, like the chimney swift, hunt in mixed species flocks with other aerial insectivores such as members of Hirundinidae (swallows). [18]
Domesticated birds raised for meat and eggs, called poultry, are the largest source of animal protein eaten by humans; in 2003, 76 million tons of poultry and 61 million tons of eggs were produced worldwide. [288] Chickens account for much of human poultry consumption, though domesticated turkeys, ducks, and geese are also relatively common. [289]
Ecologically, the seriema is the South American counterpart of the African secretary bird. They feed on insects, snakes, lizards, frogs, young birds, and rodents, with small amounts of plant food (including maize and beans). They often associate with grazing livestock, probably to take insects the animals
Bulbuls eat a wide range of foods, ranging from fruit to seeds, nectar, small insects and other arthropods and even small vertebrates. The majority of species are frugivorous and supplement their diet with some insects, although there is a significant minority of specialists, particularly in Africa. Open country species in particular are ...
A drongo is a member of the family Dicruridae of passerine birds of the Old World tropics. The 28 species in the family are placed in a single genus, Dicrurus. Drongos are mostly black or dark grey, short-legged birds, with an upright stance when perched. They have forked tails and some have elaborate tail decorations.
A single bird may eat about 15 g (0.53 oz) in seeds each day. [24] As much as half of the diet of nestlings consists of insects, such as grasshoppers, ants, beetles, bugs, caterpillars, flies and termites, as well as snails and spiders. [7] Insects are generally eaten during the breeding season, though winged termites are eaten at other times. [32]