Dark-bellied Cinclodes

The dark-bellied cinclodes is 18 to 20 cm (7.1 to 7.9 in) long and weighs about 36 to 50 g (1.3 to 1.8 oz). It is a largish cinclodes with a long decurved bill. The sexes have the same plumages, and the two subspecies differ very little. Adults of the nominate subspecies have a white supercilium that begins at the forehead, dark brown lores and ear coverts, and a white malar area with some faint darker flecks. Their crown and nape are dark brown and their upperparts a slightly lighter brown. Their wings are dark brown with blackish brown primary coverts. Voice: The dark-bellied cinclodes is very vocal during the breeding season. Its song is "a piercing weep weep weep tirrrrRRRrr", sung during the male's display and sometimes in a duet by the pair. Its call is a "short, sharp, and stuttering disyllabic ch'tp lasting from 2 to several (>15) notes".