Grey-headed woodpecker Concern" rating is primarily based on the large distribution of the species. The grey-headed woodpecker is long and weighs . Specimens of the more widespread of the two Eastern subspecies, "P. c. jessoensis", are usually a little larger and heavier than individuals from the type locality. On average, it is somewhat smaller and lighter than the European green woodpecker. In the field, this distinction in size is difficult to make. Its size is approximately that of a Eurasian collared dove. Grey-headed woodpeckers have uniformly olive green upperparts, transitioning across the neck to a light grey, the head being that latter
Little green woodpecker its crown and nape. The juvenile bird has greener upperparts with pale streaks, and its underparts are paler. The little green woodpecker is found in West Africa, in Senegal, Guinea-Bissau, Guinea, Sierra Leone, Liberia, Ivory Coast and Ghana. Its range would extend east to South Sudan, Uganda, Angola and the Democratic Republic of the Congo if "C. cailliautii permista" were included in this species. Its habitat is edges of primary and secondary forests, clearings, and mosaics of forest and shrub, at elevations up to . This woodpecker eats arboreal ants. Its calls are a plaintive "huweeeeh", a harsh "whee", "kewik",