Extraordinary and iconic toucan of Andean cloud forest in northwestern Ecuador, just barely reaching southwestern Colombia. Plumage is colorful, with blue underparts, coppery back, black crown and nape, red undertail coverts, and yellow crescent below eye. Yellow “plate” on bill is its most distinctive feature, but it is reduced or lacking on juvenile birds. No other mountain-toucan occurs in its range. Typically encountered in pairs or small groups that move through the forest canopy. Song is a far-carrying, metallic wail preceded by a bill rattle, repeated every few seconds.