About the Serra Antwren
The serra antwren is a species of small insectivorous bird in subfamily Thamnophilinae of family Thamnophilidae, the "typical antbirds". It is endemic to southeastern Brazil.
Text adapted from Wikipedia, licensed CC BY-SA 4.0.
ID tip
Antwrens in the genus Formicivora have comparatively long tails, and the males are unusual in having underparts that are darker than the upperparts. The serra antwren is 12 to 14 cm (4.7 to 5.5 in) long and weighs 10 to 13 g (0.35 to 0.46 oz). Adult males of the nominate subspecies F. s. serrana have a white supercilium that extends down the neck, along the side of the breast, and widens and grays on the flanks. Their crown and upperparts are rufous-brown with white edges on the outer scapulars and a hidden white patch between them. Voice: The vocalizations of the three subspecies of serra antwren differ little. Their song is a "monotonous series of dry chup notes at same pitch and pace" that may be sung as many as 50 times in succession though sometimes with short pauses. They also make a "short downslurred nasal whine...up to 20 notes" and a "high-pitched squeaky disyllabic kee-ip note...
Text from Wikipedia, licensed CC BY-SA 4.0.
Where the Serra Antwren lives
When to see the Serra Antwren
Peak activity in October · a resident species across most of its range
Easily confused with
Narrow-billed AntwrenFormicivora iheringiThe narrow-billed antwren is 11 to 12 cm (4.3 to 4.7 in) long; one male weighed 8.2 g (0.29 oz).
Black-hooded AntwrenFormicivora erythronotosThe black-hooded antwren is 11 cm (4.3 in) long.
Sincora AntwrenFormicivora grantsauiThe Sincora antwren is 12 to 13 cm (4.7 to 5.1 in) long and weighs 8.5 to 11.5 g (0.30 to 0.41 oz).
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