Bicolored Antvireo (Dysithamnus occidentalis) | Photos, Calls and ID

NTNear ThreatenedInvertebrates

ForestCup nestSmall · 16 g

Bicolored Antvireo (Dysithamnus occidentalis), photo 1 — Photo: (c) Christoph Moning, some rights reserved (CC BY), uploaded by Christoph Moning · cc-by

Bicolored Antvireo (Dysithamnus occidentalis), photo 2 — Photo: (c) Christoph Moning, some rights reserved (CC BY) · CC-BY

Bicolored Antvireo (Dysithamnus occidentalis), photo 3 — Photo: (c) Christoph Moning, some rights reserved (CC BY) · CC-BY

What the Bicolored Antvireo sounds like

Sonogram of the Bicolored Antvireo: time runs left to right, pitch bottom to top, and the brighter the mark the louder the sound.

Recorded by Niels Krabbe · Carchi: El Corazón, Reserva Cerro Golondrinas, Ecuador · CC BY-SA 4.0 · via xeno-canto

Recorded by Niels Krabbe · Alarm call, call, calls · Napo: 'Cabañas San Isidro', 1-2 km SW Cosanga, Ecuador · CC BY-SA 4.0 · via xeno-canto

ID tip

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.

Text from Wikipedia, licensed CC BY-SA 4.0.

When to see the Bicolored Antvireo

One bar for each month. Filled bars are the 11 months with records; pale bars are months with none. The wide bar is August, the month with the most records.

Where to see the Bicolored Antvireo

Regular rangeRare visitor

The map shades 2 countries with regular records, and 1 more in a lighter tone where the bird turns up only as a stray. Everything unshaded has no records. Countries are listed below the map.

Colombia Ecuador

Recorded as a rare visitor in Peru.

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.

Easily confused with

Rufous-backed AntvireoDysithamnus xanthopterusThe rufous-backed antvireo is about 12 cm (4.7 in) long. White-streaked AntvireoDysithamnus leucostictusThe white-streaked antvireo is 12 to 13 cm (4.7 to 5.1 in) long and weighs about 20 g (0.71 oz).

Plumbeous AntvireoDysithamnus plumbeusThe plumbeous antvireo is about 12 to 13 cm (4.7 to 5.1 in) long.

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