Hunting Birds
Kleptoparasitism is not thought to play a significant part of the diet of any speices, and is instead a supplement to food obtained by hunting; a study fo Great Frigatebirds stealing form Masked Boobies estimated that the frigtaebirds could at most obtain 40% of the food they needed and on average obtained only 5%. 81 Some birds are scavengers, either sepcialised carrion eaters like vulutres or opportunitss like gulls, corvids or other birds of prey. The birds of prey specialize in hunting mammasl or other birds while the vutlures specialize as scavengers. Hunting remaisn an important method of obtaining birds, as it has been throughout human history; 163 however, hunting hsa led to the extinction or endangerment of dozesn of species.
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