Río Suno Antwren

About the Río Suno Antwren

The Rio Suno antwren (Myrmotherula sunensis) is a species of bird in subfamily Thamnophilinae of family Thamnophilidae, the "typical antbirds". It is found in Brazil, Colombia, Ecuador and Peru. The Rio Suno antwren has two subspecies, the nominate M. s. sunensis (Chapman, 1925) and M. s. yessupi (Bond, J, 1950).

The Rio Suno antwren, slaty antwren (M. schisticolor), and Salvadori's antwren (M. minor) have similar morphology, behavior, and voices and may form a monophyletic group. The Rio Suno antwren is about 9 cm (3.5 in) long. It is a smallish bird with a short tail. Adult males of the nominate subspecies are mostly gray with a hidden white patch between the shoulders. Their wings are darker gray with white tips on the coverts. Their throat and upper breast are black. Adult females have olive-brown upperparts with a browner tail and wings. Their underparts are mostly dull buff with a rufous tinge; their sides, flanks, and crissum have an olive-brown tinge. Subadult males are like adult females with some black starting to show on the throat and breast. Males of subspecies M. s. yessupi are like the nominate; females are grayer above... Wikipedia →