In fact, social monogamy is extremely common in birds and somewhat common in mammals, while sexual monogamy is vanishingly ...

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 ...

Its calls are usually loud and often provide the best evidence to the presence of the bird ... are quite similar. Common in eastern North America, the yellow-billed cuckoo is becoming increasingly ...

Sometimes a bird species’ very survival depends on ... strange egg or desert the nest to start afresh. In Japan, the common cuckoo recently switched to a new, unsuspecting host on which to ...

that involves laying its eggs in the nests of other bird species. This cunning behaviour allows the cuckoo to offload the responsibilities of parental care onto unsuspecting host birds. Common ...

New research by the British Trust for Ornithology indicates that many migratory bird species are lacking consistent ...

Historically the cuckoo was common from the shores of Lake Washington in Seattle to the mouth of the Colorado River. The cuckoo is a visually striking bird whose long tail has flashy white markings.

Coucou - roughly pronounced koo-koo - is a way of saying hello in French, similar to salut - hi. French dictionary Larousse ...

But this rare bird raises its voice less and less often in western North America, where it has been eradicated from most of its riparian habitat. The cuckoo was once a common species from Lake ...