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The lappet-faced vulture is a scavenging bird, feeding mostly from animal carcasses, which it finds by sight or by watching other vultures. More so than many African vultures, they often find carrion on their own and start tearing through the skin.
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.
Although the term "bird of prey" could theoretically be taken to include all birds that actively hunt and eat other animals, [4] ornithologists typically use the narrower definition followed in this page, [5] excluding many piscivorous predators such as storks, cranes, herons, gulls, skuas, penguins, and kingfishers, as well as many primarily ...
The cinereous vulture is a largely solitary bird, being found alone or in pairs much more frequently than most other Old World vultures. At large carcasses or feeding sites, small groups may congregate. Such groups can rarely include up to 12 to 20 vultures, with some older reports of up to 30 or 40. [5] [6]
African penduline-tit (Anthoscopus caroli) hanging from the end of a branch and gleaning.. Gleaning is a feeding strategy by birds and bats in which they catch invertebrate prey, mainly arthropods, by plucking them from foliage or the ground, from crevices such as rock faces and under the eaves of houses, or even, as in the case of ticks and lice, from living animals.
An example of this phenomenon is the increased transmission of tuberculosis observed when scavengers engage in eating infected carcasses. [15] Likewise, the ingestion of bat carcasses infected with rabies by striped skunks ( Mephitis mephitis ) resulted in increased infection of these organisms with the virus.
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The marabou stork is a massive bird: large specimens are thought to reach a height of 152 centimetres (5 feet) and a weight of 9 kg (20 lb). [ 8 ] [ 9 ] A wingspan of 3.7 m (12 ft) was accepted by Fisher and Peterson, who ranked the species as having the largest wing-spread of any living bird.