Chapman's Bristle-Tyrant

A plain brown bird with a pale eyering and rusty-brown tail, best known for its rich, powerful song which can keep people awake when given at night. In areas of overlap, compare with extremely similar Thrush Nightingale; note present species’ unmarked pale underparts, often with a variable buffy wash, as well as its warmer-toned back and brighter rufous tail. Song is extremely variable, and can include whistles, trills, rattles, and warbled phrases; elements often repeated. Calls include a very difficult-to-locate “teek”, low rattles, and harsh rasping calls. Found in varied wooded and scrubby habitats, typically with shady understory. Winters in similarly varied tangled habitats. Typically rather shy and elusive.

Fairly common but local and easily overlooked in the Andes, mainly in canyons and on rocky slopes with fairly dense bushes and scrub. Usually rather skulking; keeps low in bushes and creeps in vegetation, but often sings from atop a bush. Plumage rather plain but relatively dark brownish above with chestnut wings and a dark-centered chestnut tail. Compare with Cordilleran Canastero, of more open habitats; also note differences in song and calls.

Unique, stocky, and rather pigeonlike white bird (actually an aberrant shorebird) of Antarctic Peninsula and islands. Migrates north in winter to Tierra del Fuego and southern Argentina, where a few immatures remain year-round at sea lion and penguin colonies. Typically unafraid; walks around boldly to scavenge and even eat feces. Plumage entirely white (somehow remarkably clean given its habits) with a naked pale pinkish face and a pale green and orange bill. Flies strongly with stiff wingbeats; does not alight on water, but will hitch rides on ships.