

About the Spot-backed Antwren
The spot-backed antwren is a species of bird in subfamily Thamnophilinae of family Thamnophilidae, the "typical antbirds". It is found in Brazil, Colombia, and Venezuela.
Text adapted from Wikipedia, licensed CC BY-SA 4.0.
ID tip
The spot-backed antwren is 11 to 12 cm (4.3 to 4.7 in) long and weighs 9.5 to 10.5 g (0.34 to 0.37 oz). Adult males have a black crown and nape, a long white supercilium, a black streak through the eye, and grayish ear coverts. Their back and rump are dark gray with white edges on most back feathers and blackish patches. They have white-edged black scapulars and a hidden white patch between them. Their flight feathers are gray and black with white edges towards the end; their wing coverts are black with white tips. Their tail is black with white feather tips and white outermost feathers. Voice: The spot-backed antwren's song is a "very high, fast, slightly rising, then descending and fading, trilling 'wiwiwurrrrrrr' series" that lasts about two seconds. Its call is "a short...downslurred plaintive note, repeated often but irregularly".
Text from Wikipedia, licensed CC BY-SA 4.0.
Where it lives
Recorded as a rare visitor in French Guiana.
When to see it
Peak activity in July · a resident species across most of its range
Easily confused with
Dugand's AntwrenHerpsilochmus dugandiDugand's antwren is 10 to 11.5 cm (3.9 to 4.5 in) long and weighs 9.3 to 11.3 g (0.33 to 0.40 oz).
Learn the Spot-backed Antwren for real
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