Cuckoos mimic hawks to fool small birds

Not Exactly Rocket Science
By Ed Yong
May 7, 2008 4:01 AMNov 5, 2019 2:14 AM

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Cuckoos are some of nature's most familiar conmen. Several species of this large family are murderous slackers, who shun their own parental responsibilities by deceiving other birds into caring for their chicks. In the process, they destroy the eggs of the unwitting adopted family to ensure that their own chick gets undivided attention. But this is not the only way that cuckoos fool other birds - they also mimic hawks.

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