Least Storm-Petrel

Small ovenbird species with brown streaks above and faded buff-streaks below. Note the rufous forehead and white eyebrow and throat. Usually seen in pairs on the edge of woodlands and open areas like savannas, grasslands, and pastures near farms where it builds huge stick/thorn nests. The song, normally delivered as a duet, is a series of fast trilled notes.

Small drongo with a slightly notched tail. Found in open forest, thick woodland, and thickets. Not as bold or conspicuous as the common Fork-tailed Drongo. Often in pairs. Song is an explosive and highly variable mix of whistles, squeals, and rasps. Similar to Velvet-mantled and Fork-tailed drongos, but with a much less forked tail. Very similar to Shining Drongo, but Square-tailed has less glossy plumage, a redder eye, and prefers drier habitats. Distinguished from black-flycatchers by heavier bill and red eye. Upright posture is unlike other all-black mid-sized birds.

Small becard occurring from southwest Colombia to northwest Peru, mainly on the west slope of the Andes and in the Marañon drainage, but (perhaps seasonally?) on the east slope of the Andes as well. Mostly found in foothills, in middle to upper levels of humid montane forest, dry forest, and more open second-growth. Male is mostly gray with bold white edges on the wing feathers and a black cap with pale spectacles. Compare with White-winged Becard, which has a black back and dark lores. Female is very different; look for her brown cap bordered with black, white spectacles, pale yellowish belly, and tawny edges on wing feathers. Extremely similar to Black-and-white Becard, with potential range overlap on the east slope of the Andes in Ecuador and Peru. Male Cryptic shows a narrower upper wingbar, paler lores, a grayer upperside of the tail, and a more slender bill than Black-and-white. Female Cryptic has a duller brownish crown with a narrower black border. These features may all be difficult or impossible to assess in the field; some birds are best left unidentified. Also note voice: song a fast series of two sweet downslurred whistles followed by a stuttered upslurred whistle, often repeated two or three times. Black-and-white’s song is slower, with longer notes.