Screaming Cowbird

No similar species in its range. Found in woodland, forest, matorral, and farmland with taller trees and hedges; often feeds on the ground. In some areas of central Chile nests in colonies in dirt bluffs, such as along roadsides; elsewhere usually nests in holes drilled in trees. Note the gray crown and plain buffy face (with dark whisker on male), big white rump patch, and yellow shafts to wing feathers (mainly visible in flight). Loud shrieking calls sometimes draw attention.

A small drab inhabitant of woodlands including orchards and coffee plantations; typically “flycatches” from a low perch and returns to the same perch. This species is perhaps most notable in its lack of field marks, including lack of wingbars and facial markings. The Stolid Flycatcher is much larger and has wingbars and the Greater Antillean Elaenia has bold wingbars and a dull eyering. Rather unvocal for a pewee; most common call is a repeated mellow “pip”.

A slender, long-tailed bird of dense gallery forests and river islands in northern Brazil and extreme southwestern Guyana. Male is mostly black with tail feathers tipped white and with white scalloping on wings. Female is very different: brownish-gray above and buffy below, with a black tail and white throat streaked black. Like other Cercomacra, tends to stay concealed in dense vine tangles in the canopy and midstory, where it clambers slowly about, usually in pairs, searching for insects. Best detected by voice; two-noted song is given in series of 3–5 phrases, with hiccupping effect; similar to song of Gray Antbird but higher-pitched, faster, and less hoarse. Female is unlike any other species in range. Male is darker than Gray and Blackish antbirds, which do not occur in the same habitat and have different voices. Plumage recalls Dot-winged Antwren, but Rio Branco Antbird is considerably larger.