Bicolored Antvireo
Dysithamnus occidentalis
The Bicolored Antvireo (Dysithamnus occidentalis) is a rare antbirds, antshrikes, antwrens, and antvireo found in 3 countries, weighing about 16 g. The bicolored antvireo is a Near Threatened insectivorous bird in subfamily Thamnophilinae of family Thamnophilidae, the "typical antbirds".
About the Bicolored Antvireo
The bicolored antvireo is a Near Threatened insectivorous bird in subfamily Thamnophilinae of family Thamnophilidae, the "typical antbirds". It is found in Colombia, Ecuador, and Peru.
Text adapted from Wikipedia, licensed CC BY-SA 4.0.
How to identify it
The bicolored antvireo is about 13 to 13.5 cm (5.1 to 5.3 in) long. Adult males of the nominate subspecies D. o. occidentalis have a blackish gray head, upperparts, and tail with a mostly-hidden white patch between the scapulars. Their wings are black with white dots on the greater and median coverts and mostly white lesser coverts which are mostly hidden. Their underparts are a slightly lighter blackish gray than the upperparts. Adult females have a chestnut crown and upperparts with buffy white spots on the wing coverts. Voice: The bicolored antvireo's song has not been identified with certainty; one of the vocalizations thought to be a call might be the song. In Ecuador the species' most common call is a "fast throaty scold, 'jeér-deer-dur' ". In that country it also makes "clear 'peeu' calls" and "a fast ascending 'pu-pu-pooyeh?' ". Schulenberg et al.
What the Bicolored Antvireo sounds like
Where it lives
Recorded as a rare visitor in Peru.
When to see it
Best months: January, February, March, April, May, July, August, September, October, November, December, with peak activity in August. It is a resident species across most of its range.
Easily confused with
Quick questions
- How do you identify a Bicolored Antvireo?
- The bicolored antvireo is about 13 to 13.5 cm (5.1 to 5.3 in) long. Full identification notes are on this page.
- How big is a Bicolored Antvireo?
- The Bicolored Antvireo is a small sized bird weighing about 16 g.
- Where can you see a Bicolored Antvireo?
- The Bicolored Antvireo occurs in 3 countries, including Colombia and Ecuador.
- What does a Bicolored Antvireo sound like?
- You can listen to 2 field recordings of the Bicolored Antvireo on this page, contributed to xeno-canto under open licences.
- What birds look similar to a Bicolored Antvireo?
- The Bicolored Antvireo is most easily confused with the Rufous-backed Antvireo, the White-streaked Antvireo and the Plumbeous Antvireo.
- Is the Bicolored Antvireo endangered?
- The Bicolored Antvireo is listed as Near Threatened on the IUCN Red List.
Learn the Bicolored Antvireo for real
BeakBrain drills you on photos and calls until you can greet this bird by name in the field. Free to play, on any device.
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