Does a cuckoo know it's a cuckoo? The answer is more difficult than you might think, explains Richard Pallardy ...
The nest parasites get a bad rap for making other birds raise their young, but study by study, Mark Hauber and his “Cowbird ...
Kākāpō ( Strigops habroptilus) are large, flightless, nocturnal parrots with mottled green and yellow plumage that only breed ...
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