Home; Nature; The terrible truth about the cuckoo, and the 'monstrous outrages' it perpetrates on its foster parents and siblings. The cuckoo is a bird whose behaviour is so horrendous — when judged ...

Though the birds are known for their distinctive yellow beaks, you might see them in a tree by spotting their long gray tail with white spots on the bottom, or their gray wings tinged with red.

That nest usually belongs to a much smaller bird, a warbler or pipit, for example, who happens to have eggs of a similar color to that of the cuckoo. The host birds will incubate the egg as if it ...

Cuckoo birds present a useful system for studying coevolutionary diversification. In some species, cuckoo chicks kick the host young from the nest, whereas in others, ...