White-bellied Antbird
Myrmeciza longipes
Medium-sized antbird with a disjunct range from Panama to Brazil. Variable plumage across range. Male generally rufous above and gray below with a white lower belly and blackish face and throat. Females are brown below with dark spotting on the wing coverts. Occurs in pairs in the dense understory of forest edge and second growth; often skulky and difficult to see well. Listen for a rapid trill that starts high and descends in both speed and pitch.
Identification
This antbird, like others in its family, is a forest bird with a preference for undergrowth in dry or moist deciduous habitats. It is a resident breeder which lays two or three eggs in a nest in a tree, both sexes incubating.<p>The white-bellied antbird is typically 15 cm long, and weighs 26 g. It has rufous brown upperparts and whitish underparts shading to cinnamon-buff on the flanks and lower belly. There is a long grey supercilium. The pink legs are long and strong, reflecting this bird's terrestrial lifestyle.<p>The male has a black face, throat and upper breast. The female has a darker crown, grey cheek patches and small dark spots on the wings, and lacks the black markings of the male. The northern race griseopectus has black spots on the wings and grey central underparts in both sexes.<p>The white-bellied antbird is an insectivore which feeds on ants and other arthropods at or near the ground; it sometimes follows columns of army ants. It may be located by its bright descending jeer-jeer-jeer-jeer-jeer-jeer-jeer-jeer-jeer-jeer-jeer-jeer song, which ends with a few chew notes.
Taxonomy
The white-bellied antbird was described by the English naturalist William John Swainson in 1825 and given the binomial name Drymophila longipes. The genus Myrmeciza was erected by the English zoologist George Robert Gray in 1841 with the white-bellied antbird as the type species. The genus formerly included more than 20 species. A molecular phylogenetic study published in 2013 found that Myrmeciza, as then defined, was polyphyletic. In the resulting rearrangement to create monophyletic genera, the species formerly placed in Myrmeciza were moved to 12 other genera leaving the white-bellied antbird as only the only member of the genus.<p>There are four subspecies:
- Scientific name
- Myrmeciza longipes
- Authority
- (Swainson, 1825)
- Order
- Passeriformes
- Family
- Thamnophilidae
- Genus
- Myrmeciza
Range and habitat
- Migration
- Resident species
Behavior
Migration pattern: Resident species.
Conservation
Population trend: declining.
- Population trend
- declining
Photos
Distribution
Bird Calls
Other Birds
White-breasted Parrotbill
Paradoxornis ruficeps
Chunky parrotbill with a large head and a relatively short tail. Very similar in appearance to Rufous-headed and Pale-billed Parrotbills, but note brighter coloration and whiter underparts. Forages in small flocks, often with other species, in foothill forest bamboo clusters; also in reedbeds and tall grass. Song is a descending series of 4-5 whistles: “wee-dee-dee-dee-dee.” Calls include a loud, sputtering machine-gun chatter.
White-collared Kite
Leptodon forbesi
Rather large raptor, mostly black above and white below. Note the mostly white tail with a broad dark band, and the black-and-white bars on the flight feathers. A range-restricted species of the northeast Atlantic forest. Often attracts attention by its call, a series of repetitive “kua-kua-kua-kua” notes given in a spectacular display flight. Adults of the similar Gray-headed Kite have a gray throat, dark gray back of neck, barred black-and-white underwing, and two dark bars on the tail. Immatures have a different underwing and tail pattern.
Red-necked Woodpecker
Campephilus rubricollis
Large red-and-black rainforest woodpecker. Both sexes have a deep red head, neck, and underparts with a black back and wings, and a pale bill. Males have a small white ear spot whereas females have a white stripe extending from the base of the bill to under the eye. Distinguished from other large woodpeckers such as Lineated and Crimson-crested by the red neck and underparts and lack of prominent white markings on the neck. Found in mature rainforest and occasionally around forest edges and younger forest. Listen for its nasal “ng-kah” call and territorial double knock.
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