Buff-winged Cinclodes
Cinclodes fuscus
The buff-winged cinclodes is 15 to 19.4 cm (5.9 to 7.6 in) long and weighs 29 to 33 g (1.0 to 1.2 oz). It is a small cinclodes with a shortish bill. The sexes have the same plumage. Adults have a distinct light buffish white supercilium, dark gray-brown ear coverts with pale streaks, and a bright white malar area that flares to the rear. Their forehead is speckled, their crown dark gray-brown, and their upperparts dark brown. Their wing coverts are dark brown with wide buffish edges and their flight feathers dark fuscous with a narrow tawny-rufous band across them. Voice: The buff-winged cinclodes' song is "a short, fast, dry trill, 't-r-r-r-r-r-r-r-r-r-t', lasting c. 2 seconds, often introduced by call notes", and can be sung from the ground, from a rock, and in flight. Its calls include "a sharp 'pfip'... series of high-pitched tinkling notes a sharp whistled 'tsip' ".
ID text from Wikipedia, CC BY-SA 4.0
Grey-flanked Cinclodes
Cinclodes oustaleti
The grey-flanked cinclodes is 17 to 18 cm (6.7 to 7.1 in) long and weighs 22 to 31 g (0.78 to 1.1 oz). It is a small cinclodes with a medium-length slightly decurved bill. The sexes have the same plumage. Adults of the nominate subspecies have a buff supercilium with speckles at its front, blackish brown lores and ear coverts, and a whitish malar area with dark scallops. Their crown is dark grayish brown and their upperparts rich dark brown. Voice: The grey-flanked cinclodes' song is "a fast dry twittery trill rising in pitch, introduced by a few single notes", and its call is "a dry 'tsick' ".
ID text from Wikipedia, CC BY-SA 4.0
Where you might meet both
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Play today's Daily BirdPhotos and recordings are credited to their authors under the licence shown. Full profiles: Buff-winged Cinclodes and Grey-flanked Cinclodes.