A superb fairy-wren calls to a Horsfield's bronze-cuckoo. Brood parasites like cuckoos lay eggs in other birds' nests and leave them behind for the host birds to raise. David Ongley / Cornell Lab of ...

More than 20 species of bird around the world use a similar “whining” alarm call to warn birds like cuckoos are around. The call seems to be understood across species, and its specific use hints at ...

A long-billed curlew flies over the Great Plains. New research suggests the birds react to danger more quickly when they hear prairie dog alarm calls. Andy Boyce, Smithsonian’s National Zoo and ...

Instead, the birds are connected by the presence of brood parasites. All 21 species that produce the alarm call often live in areas with high concentrations of brood parasites, suggesting the call ...