The Guianan Puffbird is a large black-and-white puffbird of forest edge and open wooded habitats. It is closely related to the widespread White-necked Puffbird (Notharchus hyperrhynchus), but occurs only in the Guianan region, an area rich in endemic forest bird species. The Guianan region, and the range of this species, is comprised of eastern Venezuela, far northern Brazil, and the Guianas (Guyana, Suriname, and French Guiana). Both this species and White-necked have black upperparts, black collars, and white on the throat and belly, but the Guianan is smaller with a smaller bill, less white on the forehead, and more extensive black patches on the flanks. The Guianan Puffbird hunts for insects from a favored perch, sallying after flying individuals or, more often, plucking them from various substrates.