Long-crested Pygmy-Tyrant

Large woodpecker endemic to the deep thorn forest of the Chaco of western Paraguay, SE Bolivia, and N Argentina. Similar to Lineated Woodpecker, but note all black underparts and pale auriculars on Black-bodied. From Cream-backed Woodpecker by darker bill, black back, and long drum. Calls a rising, nasal “kwee?” note given in a long repetitive series. Drum long, quick, and accelerating, but tends to be shorter than the drum of Lineated.

Small, fairly plain, brown-and-orange robin-like bird. The tail is uniformly rufous-brown and the face shows a pale-gray eyebrow. Found locally in the understory of montane forest. Very shy and inconspicuous. The song is a quick, tripping series of high whistles. Also gives an alternating series of high-pitched piping notes and low-pitched scolding trills. Similar in size, shape, and behavior to Iringa and Usambara Akalats, but distinguished by orange underparts.

Heavily streaked pipit of the Pampas bunch grass lands of central Argentina. From other pipits by densely streaked nape and auriculars, and distinctive song, but very similar to Yellowish Pipit. Song long series of radio dry notes, followed immediately by slightly slower dry notes, generally given in high fluttering flight display.