Cinclodes oustaleti
The Grey-flanked Cinclodes (Cinclodes oustaleti) is a distinctive medium-sized passerine, measuring approximately 16-18 cm in length with a weight typically ranging from 25-35 grams. Its plumage is predominantly dusky brown above, with striking grey flanks that give the species its common name. Key identification marks include a prominent whitish supercilium, a rufous or buffy wing-band (more pronounced in some subspecies), and a characteristic constant tail-wagging or 'thrashing' motion whil...
Primarily found along the margins of fast-flowing streams, rivers, bogs, and marshy grasslands in the high Andes, typically at elevations between 1,500 and 4,000 meters.
Primarily insectivorous, feeding on aquatic invertebrates such as larval insects (mayflies, caddisflies, stoneflies), small beetles, spiders, and other small arthropods found in or near water.
This diurnal species is typically observed singly or in pairs, actively foraging along stream banks and wet areas. Its primary foraging strategy involves hopping and running over rocks and vegetation, frequently probing crevices, under stones, and into water with its stout, straight bill. A disti...
The Grey-flanked Cinclodes is endemic to the Andes Mountains of South America, primarily distributed across central and southern Chile and southwestern Argentina. Its breeding range extends from approximately Coquimbo in Chile south to Tierra del Fuego, and across the Andes into adjacent Argentin...
Least Concern
- The Grey-flanked Cinclodes is a true 'stream specialist,' perfectly adapted to life along fast-flowing, cold mountain waterways in the Andes. - Its constant tail-wagging motion, similar to a wagtail, is a distinctive field mark and may help dislodge insects or warn predators. - Unlike many bird...