Little Inca-Finch

Essentially a tiny brown tennis ball supported by tiny chopsticks. Dark brown above with densely packed black-and-white scaling on the underside. Gives the impression of a tailless rodent as it makes its way furtively through dense shrubbery and leaf litter. Can be quite vocal and is jarringly loud for its size, giving single well-spaced piercing whistles on different high pitches, and occasionally an accelerating, usually rising rapid series of whistles. Also gives a sharp chip.

The only dipper in its range, and thus unlikely to be confused. Chunky and boldly patterned in blackish and white, with obvious white crown and underparts (somewhat variable in different parts of range). Sexes similar. A denizen of fast-moving streams and rivers with plenty of rocks to perch on. Fairly widely distributed in the Andes from Venezuela to Bolivia; can be found from 700–3,500 m. Usually seen singly or in pairs, quite conspicuous as they perch on boulders or fly along the river. Gives a piercing “dzeet!” call, especially in flight.

Male is entirely snowy white with stout dark bill. Female also has stout gray bill, but body entirely pale gray with obvious white edges on wing feathers. Rather chunky body with short tail and smoothly rounded head, large black eye. Distinctive in limited range. Found in forest canopy, often seen around fruiting trees. Frequently perches conspicuously, but can descend into foliage when feeding. Quiet.