Flavescent Warbler

Large, heavy-billed woodcreeper. Has rather unmarked plumage, but note the buffy eyebrow, moustachial stripe, and throat. No other woodcreeper within its range has such a large, strong bill. Inhabits deciduous dry forests and wooded caatinga. Song is a whining series of unmelodic notes, such as “nk-wiirh, week! weeer, weeer, weeur, weuur.”

This antwren is known only from a small area in northeastern Peru and adjacent border areas of Ecuador. It is confined to rainforest that grows in nutrient-poor soils with a specific mineral composition. Note the yellowish underparts, black crown and black eye-stripe separated by a pale eyebrow, and bold white wingbars and tail edges. Similar to Dugand’s Antwren, but male has yellowish underparts and female has a black (not brown) crown. Stays quite high in the trees and often joins mixed-species flocks. Song is decelerating series of notes that rises and then falls.

Chunky, large-billed bird of rainforest canopy; easily identified by black-and-white plumage, relatively large size, and staid demeanor. Most often seen perched high in bare branches, sometimes near arboreal termite nests, in which it digs its own nest cavities. May also forage at lower levels. Sits motionless for long periods, sallying to vegetation for large insects. Superficially resembles Pied Puffbird but is much larger with a solid black crown and more white on the forehead.