The black woodpecker

Sporting a black cap, the black woodpecker is the biggest of the woodpecker family. Wary and solitary, it is difficult to spot, but its strident calls give its presence away. It feeds mainly on ants and insects living in dead trees, which it extracts by hammering into the wood. It hollows out a nest hole in trees. Once the young have left the nest, it may be taken over by owls or forest-dwelling bats.