About Notharchus swainsoni (G.R.Gray, 1846)
Size and Weight
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).
Crown and Upperpart Coloration
Its crown and upperparts are black with a green gloss, and the feathers have buffy edges.
Forehead and Upper Chest Coloration
It has a narrow white forehead, throat, and upper breast.
Face and Nape Coloration
The sides of its face and a thin band around its nape are grayish white.
Underpart Coloration
A wide black band separates the upper breast from the buffy to pale rufous belly, and its flanks are gray.
Eye Color
Its eye may be straw-colored, brown, or red.
Geographic Distribution
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.
Movement Patterns
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.
Habitat
It inhabits lowland humid primary and secondary forest.
