Cuckoo

Beloved as the herald of spring, cuckoos have held a place in our affections for centuries. The oldest song in English celebrates the cuckoo''s arrival, telling us that ''Sumer is icumen in''. But for many other birds the cuckoo is a signal of doom, for it is Nature''s most notorious cheat. Cuckoos across the world have evolved extraordinary tricks to manipulate other species into raising their yo...