An Amazonian species, the Fulvous-crested Tanager is most regularly encountered within mixed-species flocks in the undergrowth or at mid levels of humid lowland forest, and is usually observed in pairs. This species displays some reasonably distinctive geographical variation, which is visible along a broadly east to west gradient. Males are largely glossy black with whitish pectoral tufts and a rufous patch on the lower flanks, and, in the east of the range, a tawny-buff crown and rump. Further west the crown and rump patches are rufous, and the former is much smaller and harder to see. Females are largely olive-colored above, with a grayish head and a conspicuous yellow eye-ring. However, the underparts are variable, from grayish buff in the east of the species’ range to yellowish buff in the west. Overall, the Fulvous-crested Tanager is found from the Guianan Shield and east Amazonian Brazil to eastern Ecuador and Peru.