Grey-headed woodpecker colour. The typical woodpecker markings are small and not particularly conspicuous. It has a grey head with black moustache, and the male has a red crown. It has a shorter neck, slimmer bill and slightly rounder head than the green woodpecker. Calls made by the European green woodpecker and grey-headed woodpecker resemble each other. The far-carrying territorial song of the grey-headed woodpecker is more melodic and cleaner than the explosive "laughter" of the green woodpecker. The call series consists of ten to fifteen utterances of declining pitch and gradual slowing. The verse may appear melancholic and "dying". The territorial song
Cuban ivory-billed woodpecker of the Cuban form's behaviour and habitat was not published until 1893, when Juan Gundlach included it in Volume 1 of his "Ornitología Cubana". In Cuba it was usually known by the name of "carpintero real" (royal woodpecker), although this name was also used for other birds. As with "C. principalis", the Cuban ivory-bill was thought to inhabit old-growth forests with a plentiful supply of dead or dying trees; these were a source of the cerambycid and other beetle larvae that formed the bulk of its diet. Most of Cuba's lowland deciduous forests had been cleared by the early twentieth