More than 20 species make a nearly identical noise to warn nearby birds of brood parasites, a behavior that bridges the ...

Cuckoos are nest parasites. That means they lay eggs in the nests of other birds, which then put the effort into raising the chicks. So you'd think they'd be quiet about it. Yet female cuckoos have a ...

Brood parasites lay eggs in other species’ nests, forcing the host to raise their offspring. The cost to host species is high ...

A new global study has revealed that birds from vastly different species and continents use a remarkably similar alarm call ...

The familiar early summer call of the cuckoo has inspired composer and poet alike, but the sound belies the bird's true parasitic nature. Now, researchers have taken the cuckoo's wont to deposit its ...