Patagonian Sierra Finch

A small warbler-like bird usually seen in small groups or flocks foraging high above the ground in the forest or forest edge. Pale below with a distinct black chest band separating the white throat from the light gray belly, giving these eremomelas a distinctive “belted” appearance. Upperparts are uniformly gray except for a reddish cap and dark face. Overlaps locally with Turner’s Eremomela in the eastern part of its range, but note Rufous-crowned Eremomela’s extensive reddish cap and big, broad black chest band. Calls consist of a buzzy, sometimes multi-parted “brzrt,” as well as higher-pitched twittering calls sometimes interspersed with more whistled notes and trills.

Small, chunky owl with a large, flat-topped head. Note extensive white spotting and gray face framed in black. Inhabits boreal, highland, and mixed woodlands; nests in tree cavities. Can be very difficult to find by day. At night, listen for fast tooting song, which can be confused with a displaying snipe; note clearer whistled tone and steadier volume. Populations move in response to winter conditions and prey populations, with large numbers moving south of typical wintering range some winters. Sometimes hunts small rodents around bird feeders. In Eurasia, compare with Eurasian Pygmy-Owl, which is smaller, has a less distinct facial disc, and finer spotting. In North America, distinguished from Northern Saw-whet Owl by its colder gray-brown coloration and spotted (not streaked) forehead.

Fairly common and widespread swift of foothills and highlands; also ranges regularly to lowlands. About the size of a Chimney Swift, but typically has a slightly notched tail. Slightly larger and longer winged than Vaux’s Swift with stronger flight and more prolonged gliding. Usually seen in flocks, often associating with swallows and other swifts. Looks black unless seen at close range, when dark rusty collar may be visible (immature birds lack collar). Also note the voice: a crackling, buzzy chatter that sounds like electricity passing through wires.