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 ...

European cuckoos lay very different eggs depending on the host species. Genetic analyses have revealed how this adaptation is inherited without leading to speciation. Subscribe to our newsletter for ...

European cuckoos lay very different eggs depending on the host species. Genetic analyses have revealed how this adaptation is inherited without leading to speciation. Bright blue, white, greenish, ...

A George Mason University (GMU) biologist proposed an alternate theory of how the common cuckoo bird mimics other birds’ egg colorings at a biology department seminar Jan. 15. Hanley said cuckoos are ...

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 ...

Coots, the Rodney Dangerfields of the bird world, just might start to get some respect as a result of a new study showing that these common marsh birds are able to recognize and count their own eggs, ...

European cuckoos lay very different eggs depending on the host species. Genetic analyses have revealed how this adaptation is inherited without leading to speciation. Bright blue, white, greenish, ...