Nest building is costly. It requires time, energy, and constant defence from predators. For birds that raise their own young, this investment makes sense because it ensures survival of their chicks.

For two million years African cuckoo finches have been tricking other birds into raising their young by mimicking the colour of their eggs, but new research suggests the tables may be turning in this ...

A stunning shot of a cuckoo being taken on by a tiny warbler in York has won an international photography award. British snapper Keith Bannister, 69, woke up at 3.30am to get the winning shot, which ...

JOHNSTON, R.I. (WPRI) ─ Rhode Islanders have a new, yet positive, reason to go a little “cuckoo” this year. Hundreds of people have been flocking to Snake Den State Park in Johnston to get a glimpse ...

Cuckoo birds aren’t just the inspiration for intricate clocks. They’re also shameless parasites. Brood parasites, that is. Many species of cuckoos have been known to leave their eggs in other birds’ ...

It’s hard to get inside another human’s head – let alone a member of a different species – but that’s where physics and computer models help. Liz Kalaugher reports how researchers are visualizing what ...

To someone watching birds casually, the cuckoo’s behaviour looks almost lazy. Instead of gathering twigs, lining a nest, and feeding its chicks, the cuckoo quietly slips its egg into another bird’s ...