Typical Antbirds (Thamnophilidae)
Bicoloured Antvireo (Dysithamnus occidentalis) - HBW 8, p. 573
French: Batara occidental
German: Schiefergrauer Würgerling
Spanish: Batarito Bicolor
Other common names: Western Antvireo/Antshrike, Chapman’s Antvireo/Antshrike
Taxonomy: Thamnophilus aethiops occidentalis Chapman, 1923, Cocal, 4000 ft [c. 1200 m], Cauca, Colombia.
Relationships of genus not clearly established; preliminary molecular evidence suggests affiliation with Thamnophilus, and morphological characteristics have connected it with Thamnomanes. Present species has been variously allocated to both of those genera, but bulk of vocal, morphological and ecological evidence supports its inclusion in current genus. Racial identity of birds on Pacific slope in N Ecuador uncertain; tentatively placed in nominate, but possibly belong to race punctitectus. Two subspecies recognized.
Subspecies and Distribution:
- occidentalis (Chapman, 1923) - Pacific Andean slope of S Colombia (Valle, Cauca) and extreme N Ecuador (Carchi).
- punctitectus Chapman, 1924 - E Andean slope in Ecuador (Napo, Morona-Santiago).
- Vulnerable Enlarge map
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A bird perched close to the nest Locality Yanayacu Biological Station, Napo Province, Ecuador (ssp punctitectus)
Yanayacu Biological Station 7 November 2002 5 years ago 35 sec 3.9 -
A bird arriving to the nest and the mate leaving it Locality Yanayacu Biological Station, Napo Province, Ecuador (ssp punctitectus)
Yanayacu Biological Station 7 November 2002 5 years ago 20 sec 3.8 -
A pair arranging the nest Locality Yanayacu Biological Station, Napo Province, Ecuador (ssp punctitectus)
Yanayacu Biological Station 7 November 2002 5 years ago 32 sec 3.6
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female perched in understory
Locality Yanayacu Biological Station, Napo Province, Ecuador (ssp punctitectus)
Dusan Brinkhuizen 23 January 2008 2 years ago 3
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Calls from a pair, possible song at 9.5s. Locality Cabañas San Isidro, Napo Province, Ecuador
(ssp punctitectus)
Nick Athanas 28 September 2003 2 years ago 4
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