Bertoni's Antbird

Personable medium-sized babbler, often encountered foraging in noisy, lively flocks on or around the forest floor. Clay-colored with brown-streaked pale underparts. White brow and throat contrast with buffy cheeks and a rusty-orange crown. Occurs from lowlands up into hilly and mountainous forests. Song can be a distinctive series of two to three notes (“two-chee-deer!”), a more extended melodic warble, or a descending chattering trill. Gives rasping, rattling calls, often while flipping leaves on the ground in foraging flocks.

Generally uncommon and fairly local small diving duck. Frequents lakes, reservoirs, and rivers. Shy, often found alone or in small groups; frequently kept in European waterfowl collections. Both sexes have bushy crest. Striking male mostly white with black face mask and fine black lines on sides of breast and flanks. Female has dark rusty brown head with big white throat and cheek patch. In flight appears strikingly black-and-white.

Dark bird of highland forest understory. Male is entirely dark gray except for bold white wing spots; female is brown above and rufous below with a gray face. Inhabits tall premontane forest, generally between 500–1800 m on tepui slopes, and is especially likely to be found in steep terrain and in areas with many large, mossy boulders. Usually found in pairs that forage for insects on or near the ground, probing into crevices and tossing aside leaves, much like others of genus; does not typically join mixed-species flocks. Song is a long series of sharp notes, swelling in volume and dropping in pitch at end. Very similar to Spot-winged Antbird of lowlands, which it replaces at higher elevations (no known overlap); best distinguished by voice and habitat.