The Cuckoo is a dove-sized bird with a blue-grey back, head and chest, and stripey black and white belly. Its sleek body, long tail and pointed wings gives it an appearance not unlike Kestrels or Sparrowhawks. Cuckoos are summer visitors and known for being brood parasites. This means that, instead of building their own nest, the females lay their eggs in other birds’ nests, especially Meadow Pipits, Dunnocks and Reed Warblers. When a female Cuckoo finds a suitable nest, and the hosts aren’t looking, she removes one of their eggs and lays her own egg in its place. Cuckoo young hatch after just 12 days, and push the hosts’ eggs or babies out of the nest, allowing it to eat all food brought by the host bird.