This story appears in the January 2018 issue of National Geographic magazine. For the care and feeding of its offspring, the common cuckoo outsources. When she’s ready to lay an egg, a female ...

Generally shy and elusive, the yellow-billed cuckoo can be easily overlooked. Its calls are usually loud and often provide the best evidence to the presence of the bird. It favors eating ...

An MP3 file designed to aggravate music swapping users and help deter illegal copying. Cuckoo eggs are either erroneously named or edited. For example, a song with a heavy metal title is really ...

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“Cuckoo” bumblebees are social parasites that take over the ... “By protecting the bee under the Endangered Species Act, we can ensure its remaining habitat is managed to head off extinction.” The ...

The yellow-billed cuckoo is sometimes called the "rain crow" because its song is often heard just before thunderstorms or summer showers. But this rare bird raises its voice less and less often in ...