Yellow-breasted Antwren
Herpsilochmus axillaris
Small, warbler-like antbird that usually stays high in the trees. Inhabits cloud forest along the east slope of the Andes; also in the western and central Andes of Colombia. Note yellow underparts, dark wings with white wingbars, and streaky face. Male has a black cap, and female has a chestnut cap. Typically seen with mixed-species flocks in the forest canopy. Frequently given song is a rising and then falling trill.
Identification
The yellow-breasted antwren is 11 to 12 cm (4.3 to 4.7 in) long and weighs 10 to 13 g (0.35 to 0.46 oz). Adult males of the nominate subspecies H. a. axillaris have a black crown and nape with white spots on the crown and a broken whitish supercilium on an otherwise mottled blackish and yellow-olive face. Their upperparts are olive-gray. Their wings coverts are black with yellow-tinged white edges and tips; their flight feathers are very dark gray. Their tail is mostly dark gray, with white tips and part of the edges of the inner feathers and mostly white outer feathers. Their throat and underparts are mostly pale yellowish olive with a yellow center to the belly. Adult females have a cinnamon-rufous crown, olive-buff upperparts, and darker olive underparts except for the yellow belly center. Their wings and tail are like the male's.<p>Males of subspecies H. a. senex are paler than the nominate, with spots only on the center of their crown and a grayish white throat and breast. Males of subspecies H. a. puncticeps have olive-tinged and grayer upperparts than the nominate and less white on their tail feathers. Females have a dark olive-gray crown with a cinnamon-rufous tinge. Males of subspecies H. a. aequatorialis also have olive-tinged and grayer upperparts than the nominate. Their crown spots are only in the center; they have mostly pale yellow underparts with an olive wash on the sides.
Taxonomy
The yellow-breasted antwren has these four subspecies:
- Scientific name
- Herpsilochmus axillaris
- Authority
- (Tschudi, 1844)
- Order
- Passeriformes
- Family
- Thamnophilidae
- Genus
- Herpsilochmus
Range and habitat
The subspecies of the yellow-breasted antwren are found thus:<p>The ranges of puncticeps and axillaris have a gap between them.<p>The yellow-breasted antwren inhabits the interior and edges of humid evergreen forest, where it tends to favor the canopy. In elevation it ranges between 800 and 2,000 m (2,600 and 6,600 ft) in Colombia, between 800 and 1,700 m (2,600 and 5,600 ft) in Ecuador, and between 750 and 1,900 m (2,500 and 6,200 ft) in Peru.
- Migration
- Resident species
Behavior
Migration pattern: Resident species.
Conservation
Population trend: declining.
- Population trend
- declining
Photos
Distribution
Bird Calls
Other Birds
Cape Wagtail
Motacilla capensis
Elegant, long-tailed bird with a brownish back, pale underparts, and a black chest band. White outer tail is conspicuous in flight. Found in most open habitats, especially those near water. Feeds by walking along the ground, bobbing its tail constantly. Call is a buzzy “tseeei” that is often doubled. Song is a complex jumble of different repeated notes. Similar to Mountain Wagtail but has brown rather than gray upperparts, and Cape has less white in the wings and tail. Also similar to juvenile African Pied Wagtail but lacks a white panel in the wing.
Ocellated Quail
Cyrtonyx ocellatus
Small, elusive quail of brushy pine-oak woods in drier highlands; favors areas with oak scrub and bunchgrass. Usually in small groups; rarely flushes until almost stepped on. It can be seen beside quiet roads and trails, mainly early and late in day, but it usually remains well hidden in cover. Male has striking harlequin face pattern and rusty underparts with complex patterning. Female has a bushy crest and a trace of the male’s facial pattern. Similar species: female Crested Bobwhite.
Gray-bellied Wren-Babbler
Spelaeornis reptatus
Elusive brown skulker with a pale throat and gray face. Dark edges to its back and crown feathers give it a scaly-looking quality. Forages on ground and in undergrowth, almost always under heavy cover and rarely emerging into the open. Extremely similar in appearance to Pale-throated, Chin Hills, and Long-tailed wren-babblers, but no range overlap. Song is a long ascending trill with a stuttering, bubbly quality to it.
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