The great blue turaco (Corythaeola cristata) is a bird species in the turaco family, Musophagidae, which is widespread throughout the African tropical rainforest. It has a typical length of around 75 cm (30 in) with a mass of around 1 kg (2 lb). The adult great blue turaco has predominantly gray-blue upperparts with an upright blue-black crest. Its bill is yellow and the two sexes have similar plumage. This great blue turaco was photographed in Kibale National Park, Uganda.Photograph credit: Giles Laurent