Relationship With Humans
Human activities have had positive effects on some species of cockatoo and negative effects on others. Many species of open country have benefited greatly from anthropogenic changes to the landscape, with the great increase in reliable seed food sources, available water and have also adapted well to a diet including foreign foodstuffs. This benefit appears to be restricted to Australian species, as cockatoos favouring open country outside Australia have not become more abundant. Predominantly forest-dwelling species have suffered greatly from habitat destruction; in the main, they appear to have a more specialised diet and have not been able to incorporate exotic food into their diet. A notable exception is the Yellow-tailed Black Cockatoo in eastern Australia.
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