Marañon Thrush

Often draws attention to its presence by its song: an ascending sequence of “kwa” notes, similar to Green-backed Trogon, but faster. Two subspecies occur in Brazil, Paraguay, and northeastern Argentina with limited geographical overlap that vary in the color of the breast and eyering; the southern one has a red belly and eyering, while the northern one has a yellow belly and eyering. The males of both subspecies have a violet-blue head and breast, a green back, and a white undertail. Females have a dull gray breast and the undertail is gray with white tips. Found in the middle to upper levels of forests and woodlands.

Large, short-tailed antbird of floodplain forest understory. Both sexes largely gray with a bare blue skin patch around the eye and a prominent white spots on the shoulder. Females are particularly distinctive with extensive orange underparts. Forages singly or in pairs in dense undergrowth, like heliconias and streamside vegetation. Song is a chortling accelerating trill.

A distinctive Scytalopus tapaculo: dark gray overall with pale throat and breast, dark chestnut belly, and an obvious pale eyebrow. In typical tapaculo fashion, acts like a mouse, scurrying around on or near the ground within montane forest. Very difficult to see. Fairly common within extremely limited range in Cerro Tacarcuna and Cerro Mali near the border of Panama and Colombia; the only Scytalopus that occurs there. Far more often heard than seen; listen for short series of four to seven “enk! enk! enk!” notes.