Unique and spectacular large dove with a weird shape: fat with a short tail and lumpy head. Male bright green with a yellow belly and very long, even brighter yellow undertail coverts that nearly reach the tip of the tail. Note paler whitish bands on the wings and uppertail. Female mostly a slightly duller green than the male, with a faint echo of the same patterning. Typically found at mid to high levels in tall trees. Note far carrying voice: a prolonged, mournful series of low-pitched hoots, slightly higher-pitched and more drawn out than the song of New Caledonian Imperial-Pigeon.