A common cuckoo calls from deep within the trees, its presence felt but never seen. Its song carries across the landscape—a ...

This is a preview. Log in through your library . Abstract The obligate brood parasitic common cuckoo (Cuculus canorus) is best known for its two-note “cu-coo” call, which is uttered repeatedly by ...

Cuckoos sneak their eggs into other birds’ nests and copy egg colors to avoid detection. This study explains how they adjust to many hosts.

Most birds spend hours, days, or even weeks painstakingly building their nests. Some birds make nests out of mud, some build nests in trees, and some birds nest on the ground and simply scrape out a ...