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
Pacific Antwren
Myrmotherula pacifica
The Pacific antwren is 9 to 10 cm (3.5 to 3.9 in) long and weighs 8.5 to 10 g (0.30 to 0.35 oz). It is a smallish bird with a tiny tail. Adult males have a black and white streaked face. Their crown, back, and rump are black with white streaks. They have a narrow white patch between the shoulders. Their tail is black with white edges and tips to the feathers. Their wings are black with white tips on the coverts and white edges on the flight feathers. Their throat, breast, and belly are white and their flanks and crissum grayer. Black streaks extend from the throat to the flanks and belly. Voice: The Pacific antwren's song is "a fast, spritely chipper that rises slightly in pitch, e.g., 'chee-chee-chi-chich-ch-ch-ch-ch-ch-ch' ". Its calls include "chee-pu", "chee-cher", and "a strident, evenly pitched 'chrreee-chrreee-chrreee-chrreee!' ".
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 Pacific Antwren.