Buff-bellied puffbird

The buff-bellied puffbird (Notharchus swainsoni) is a species of bird in the family Bucconidae, the puffbirds, nunlets, and nunbirds. It is found in Argentina, Brazil, and Paraguay.

The buff-bellied puffbird is about 23.5 cm (9.3 in) long and weighs 72 to 75.6 g (2.5 to 2.7 oz). The crown and upperparts are black with a green gloss and buffy edges to the feathers. It has a narrow white forehead, throat, and upper breast. The sides of the face and a thin band around the nape are grayish white. A wide black band separates the upper breast from the buffy to pale rufous belly. The flanks are gray. Its eye color can be straw, brown, or red.