Long-winged Antwren
Myrmotherula longipennis
The long-winged antwren is 9 to 10.5 cm (3.5 to 4.1 in) long and weighs 8 to 10 g (0.28 to 0.35 oz). It is a smallish bird with a short tail. Adult males of the nominate subspecies M. l. longipennis have dark gray upperparts with a hidden white patch between the shoulders and white tips on the scapulars. Their wings are dark gray with white-tipped black coverts. Their tail is gray with white tips on the feathers. Their throat and upper breast are black; the rest of their underparts are a paler gray than the upperparts. Voice: The songs of the long-winged antwren subspecies differ, though the differences between adjoining ones are slight to moderate. The nominate subspecies' song is "a series of harsh upslurred notes...initially gains in intensity but nearly constant in pitch and pace" like "high, nasal 'suee' notes". The songs of M. l. zimmeri and M. l. garbei are "a deliberate series...
ID text from Wikipedia, CC BY-SA 4.0
Unicolored Antwren
Myrmotherula unicolor
The unicolored antwren is 9 to 10 cm (3.5 to 3.9 in) long and weighs 6.5 to 8 g (0.23 to 0.28 oz). It is a smallish bird with a short tail. Adult males are almost entirely gray, with lighter underparts than upperparts. Their throat feathers have black bases and gray tips. Adult females have olive-brown upperparts with a grayish tinge on the crown and nape and yellowish brown uppertail coverts. Their wings are dark grayish brown with reddish yellow-brown edges on the flight feathers. Their tail is reddish yellow-brown. Voice: The unicolored antwren's song is an "irregular series of very high, sharp, drawn-out, well-separated 'Seeep' notes". Its calls include a "sharp 'wheet' ", "paired nasal notes", and "longer, flat, raspy notes".
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: Long-winged Antwren and Unicolored Antwren.