It’s not all bad for crow chicks who have to share their nest with an uninvited pushy guest such as a cuckoo youngster. For one, they can sit back and wait for food to arrive while the cuckoo chick ...
The rest of this article is behind a paywall. Please sign in or subscribe to access the full content. The great spotted cuckoo sneaks its own egg into the nest of carrion crows. The chick grows up as ...
Does a cuckoo know it's a cuckoo? The answer is more difficult than you might think, explains Richard Pallardy ...
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