Some species, including frigatebirds, gulls, and skuas, engage in kleptoparasitism, stealing food items from other birds. Kleptoparasitism is thought to be a supplement to food obtained by hunting, rather than a significant part of any species' diet; a study of great frigatebirds stealing from masked boobies estimated that the frigatebirds stole at most 40% of their food and on average stole only 5%. Other birds are scavengers; some of these, like vultures, are specialised carrion eaters, while others, like gulls, corvids, or other birds of prey, are opportunists.
Some species , including frigatebirds , gulls , and skuas , engage in kleptoparasitism , stealing food items from other birds . Kleptoparasitism is thought to be a supplement to food obtained by hunting , rather than a significant part of any species ' diet ; a study of great frigatebirds stealing from masked boobies estimated that the frigatebirds stole at most 40 % of their food and on average stole only 5 % . Other birds are scavengers ; some of these , like vultures , are specialised carrion eaters , while others , like gulls , corvids , or other birds of prey , are opportunists .
A vulture is what type of bird?
A vulture is what type of bird ?
scavengers
scavengers