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 ...

Frank Buffalino loves cuckoo clocks, but he concedes  having 50 tiny wooden birds coo-kooing all at once is a bit much. “We ...

Some calls, however, are quite similar. Common in eastern North America, the yellow-billed cuckoo is becoming increasingly rare and local in much of the West. It breeds in open woodlands with ...

The bees are threatened by declines in their host species, the once-common western bumblebee — which itself has declined by 93% — as well as by habitat degradation, overgrazing, pesticides and climate ...

The sound imitates the call of the Common Cuckoo, a summer migrant between Europe and Asia, about the size of a sparrowhawk. The first known reference to the call was written in Middle English in ...