There are several reasons why birds and animals regurgitate. Sometimes, adult animals regurgitate food to feed their not-yet-mobile young ones. Classic examples of this behaviour can be seen in a pack of Wild Dogs (Dholes) and, more commonly, in birds. The crow feeds its young with regurgitated food from its wide-ranging diet, while a pelican would regurgitate fish to feed its chicks.
Some birds also regurgitate undigested matter, like bones, feathers, fur, skull and hair. Birds of prey, as well … Read More
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