Dot-winged Antwren
Microrhopias quixensis
The dot-winged antwren is 10 to 12.5 cm (3.9 to 4.9 in) long and weighs 7.5 to 11.5 g (0.26 to 0.41 oz). The species has a long graduated tail. The sexes have different plumage. Adults of the nominate subspecies M. q. quixensis are mostly black. They have a partly concealed white patch between their shoulders. Their greater wing coverts have large white tips and the other coverts smaller ones. Their wing's underside shows additional white areas. Their flight feathers are dark gray with a brown tinge. Voice: The dot-winged antwren's song varies among the subspecies and sexes but is generally "an accelerating series of notes that shorten in length". It is described as a "slightly accelerating tip-tip-Tip-Tip-Tip-Tip-Tip-Tip-teu-teu-teu-teu'teu" in northern Central America and "a series of high, fast notes, which rise initially in pitch and intensity before descending" in Costa Rica.
ID text from Wikipedia, CC BY-SA 4.0
Fasciated Antshrike
Cymbilaimus lineatus
The fasciated antshrike is 17 to 18 cm (6.7 to 7.1 in) long and weighs 35 to 40 g (1.2 to 1.4 oz). This species exhibits significant sexual dimorphism. Both sexes of all subspecies have a red iris and a heavy bill with a hook at the end like true shrikes. Adult males of the nominate subspecies have a black forehead and crown with a few very thin white bars. The rest of their plumage is thin black and white bars. Females have a rufous crown. Most of the rest of their plumage is thin dark brown and pale yellowish brown bars; their tail is barred with dark brown and pale buff. Voice: The fasciated antshrike's song is "an evenly paced series of 3–10 plaintive, lazily delivered whistles, notes longer than spaces, middle notes sometimes longer and at slightly higher pitch". The notes have been described as sounding like "weh". One author renders the song as "cü-ü, cü-ü, cü-ü..." and another as "weeo wEEo wEEo weeo".
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: Dot-winged Antwren and Fasciated Antshrike.