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Castelnau's antshrike is a species of bird in subfamily Thamnophilinae of family Thamnophilidae, the "typical antbirds". It is found in Brazil, Colombia, Ecuador, and Peru.
Text adapted from Wikipedia, licensed CC BY-SA 4.0.
ID tip
Castelnau's antshrike is 16 to 18 cm (6.3 to 7.1 in) long and weighs 30 to 35 g (1.1 to 1.2 oz). Members of genus Thamnophilus are largish members of the antbird family; all have stout bills with a hook like those of true shrikes. This species exhibits slight sexual dimorphism. Adult males are mostly black. They have a mostly hidden white patch between their scapulars, white tips on the scapulars, white tips and edges on their wing coverts, sometimes very small white tips on their flight feathers, and white underwing coverts. Their flanks and belly are dark gray. Voice: The song of Castelnau's antshrike has been described as "a short, fast, accelerating 'keoh, keoh, kuh-kuh-kuhkuhkuhkuhkuh' with nasal, bouncing-ball quality" and as "an accelerating, descending series of downslurred notes: kyuk kyuk-kyew-kew-kew'ku'ku'kukuku". Its calls include "a drawn-out 'kawh' " that is sometimes doubled or in a series and "a 'kowah, kr-r-r-' ".
Text from Wikipedia, licensed CC BY-SA 4.0.
What the Castelnau's Antshrike sounds like
Where the Castelnau's Antshrike lives
When to see the Castelnau's Antshrike
Peak activity in July · a resident species across most of its range
Easily confused with
Chapman's AntshrikeThamnophilus zarumaeChapman's antshrike is 14 to 15.5 cm (5.5 to 6.1 in) long and weighs about 22 g (0.78 oz).
Blackish-grey AntshrikeThamnophilus nigrocinereusThe blackish-grey antshrike is 15 to 17 cm (5.9 to 6.7 in) long and weighs 28 to 32 g (0.99 to 1.1 oz).
Natterer's Slaty AntshrikeThamnophilus stictocephalusNatterer's slaty antshrike is 14 to 15 cm (5.5 to 5.9 in) long and weighs 19 to 22 g (0.67 to 0.78 oz).
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