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 ...

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 ...

Mysterious, elusive, and full of surprises, this bird's behaviour will leave you questioning everything you thought you knew ...

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 ...

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 ...

Today the bird survives in scattered locations in small numbers, including along California’s Sacramento, Eel and Kern rivers; the Colorado, Gila, Verde and San Pedro rivers in Arizona; New Mexico’s ...