Dusky Crimsonwing

Handsome antbird known only from a small area in northeastern Peru. Restricted to lowland rainforest in areas where the soil is sandy. Adult is quite distinctive, with a white mask and throat surrounded by black. The rest of the plumage is chestnut, and the legs are yellow. Juvenile is duller with much less white on the face. Sexes look alike. Found in forest understory, especially in areas with abundant palm saplings. Often seen around swarms of army ants. Song is a drawn out whistle that ends sharply higher.

Fairly bright mid-sized leaf-warbler, yellowish-green above and white below with two wingbars, a broad yellow-suffused eyebrow, and a pale stripe across a gray crown. Amount of white in the tail is intermediate between White-tailed Leaf-Warbler and Emei Leaf-Warbler. A brighter crown stripe separates Blyth’s from the Emei, and unique behavior serves to distinguish this species from White-tailed: Blyth’s constantly flicks wings one after the other, while White-tailed flicks them simultaneously. Kloss’s Leaf-Warbler is much brighter overall, especially on the head and vent. Hartert’s and Claudia’s Leaf-Warblers are closely related, physically similar, and may pose issues in areas of overlap: look out for a more yellowish breast on Hartert’s and a whiter eyebrow and less white in the tail in Claudia’s. Blyth’s song is a high “tsi-tsslehlee-tsslehlee” or “tsi-tchew-witty-tchew-witty-tchew,” with the introductory note separating it from Hartert’s but not always Claudia’s. Breeds in broadleaf (often oak), coniferous, or mixed forests at middle to high elevations, and descends into lower foothill regions in the winter.

Chunky, mid-sized, remarkably drab bird. Found in the understory of montane forest, usually in small groups. Very shy and skulking, rarely seen unless expressly searched for. Most often detected by voice: a descending series of whistles, usually given together by a group of birds, some of which add lower “chuk” notes. Similar to African Hill Babbler, but has a dull-brown rather than rich rufous-brown back. Also very similar to other illadopsises, but generally found at higher elevations, and has a less distinct white throat.