These are large woodpeckers, typically with green upperparts. They are found in forests or more open woodland, and lay their white eggs in a tree hole nest, typically on a bed of wood chips.
Picus woodpeckers are primarily insect eaters, with several species specialising in taking ants or termites. Some species will also consume fruit or eggs. Insects are captured by a rapid outward flick of the long tongue and gummed to its tip by sticky saliva.
This genus is less completely arboreal than some other woodpecker groups, and its members often feed on the ground, attacking anthills or termitaries.
Possible roles of habitat, competition and avian nest predation in the decline of the Willow Tit Parus montanus in Britain
Nov 01, 2004; Capsule Although stable in their preferred, wet habitats, Willow Tits have declined in woodland, probably because of habitat...