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 ...

The cuckoo was once a common species from Lake Washington in Seattle to the San Pedro River in southern Arizona and countless places in between. Today, with the loss of gallery riparian forests to ...

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 ...