About Notharchus swainsoni (G.R.Gray, 1846)
The buff-bellied puffbird (Notharchus swainsoni (G.R.Gray, 1846)) is approximately 23.5 cm (9.3 in) long and weighs between 72 and 75.6 g (2.5 to 2.7 oz). Its crown and upperparts are black with a green gloss, and the feathers have buffy edges. It has a narrow white forehead, throat, and upper breast. The sides of its face and a thin band around its nape are grayish white. A wide black band separates the upper breast from the buffy to pale rufous belly, and its flanks are gray. Its eye may be straw-colored, brown, or red. This species is distributed across eastern Paraguay, far northeastern Argentina's Misiones Province, and southeastern Brazil, ranging from southern Bahia and Espírito Santo south to Santa Catarina. It is a resident species in Argentina, but individuals may move into São Paulo state from other parts of its range during the austral summer. It inhabits lowland humid primary and secondary forest.
