Rufous-backed Antvireo
Dysithamnus xanthopterus
Big headed antbird with a heavy hooked bill and a shortish tail. Rufous above and pale below with a gray neck and face dappled with white spots. Males have a dark gray cap, rufous in females. The song is a loud and fast descending series of trembling notes. Found in the upper to middle levels of humid forests, usually with mixed-species flocks.
识别特征
The rufous-backed antvireo is about 12 cm (4.7 in) long. Adult males have a gray forehead, crown, nape, and upper back; their forehead, upper sides of the face, and lores have white spots. Their rest of their upperparts, wings, and tail are rufous. The center of their throat is white. Most of their underparts are pale gray (that is almost white on the belly) and their flanks are ochraceous. Adult females have a rufous crown and the spots on their face are pale buff. Most of their underparts are also pale buff, with pale olivaceous sides and flanks.
分类信息
The rufous-backed antvireo is monotypic.
- 学名
- Dysithamnus xanthopterus
- 命名信息
- Burmeister, 1856
- 目
- Passeriformes
- 科
- Thamnophilidae
- 属
- Dysithamnus
分布与栖息地
The rufous-backed antvireo is found in southeastern Brazil's coastal mountains, primarily between Rio de Janeiro and Paraná states. Since 2013 there have been scattered records from further south in Santa Catarina. The species inhabits the mid-storey to the subcanopy of montane evergreen forest and mature secondary forest. In elevation it ranges between 750 and 1,700 m (2,500 and 5,600 ft).
- 迁徙
- Resident species
行为
Migration pattern: Resident species.
保护状况
Population trend: declining.
- 种群趋势
- declining
照片
分布
鸟叫声
其他鸟类

Greater Sand-Plover
Anarhynchus leschenaultii
Medium-sized plover with a long hefty bill. Breeding adults have a dark mask and orangish chest, neck, and forehead; females duller than males. Non-breeding birds and immatures are sandy brown above and white below, with a white throat and “eyebrows.” Often confused with Lesser Sand-Plover, and best distinguished when both present; look for larger size, heavier and longer bill, paler legs, and larger-headed appearance. Additionally, unlike some Lesser Sand-Plovers, Greater never has a black boundary around the throat. Breeds in high-elevation areas, where it favors arid, open habitats, sometimes near water. Winters on coastal mudflats and estuaries.

Sjöstedt's Greenbul
Baeopogon clamans
A unusual dark greenbul often found near water in the forest interior. Decorated in various shades of dark and olive green, with a gray throat that contrasts with the breast, a buffy belly, and bright white sides of the tail. Can be confused with both Honeyguide Greenbul and actual honeyguides, but the flight is direct rather than undulating, the throat contrasts with the breast, the eyes are always dark, and the vocalizations are distinctive. Can be located by its “REHR!” calls, often followed by a series of fast, scratchy notes and sometimes repeated for minutes on end.

Mangrove Kingfisher
Halcyon senegaloides
Mid-sized, big-billed, colorful kingfisher. Adults have an all-red bill and a pale gray head. Found in mangroves, coastal forest, woodland, and scrub. Loud call is an introductory note followed by a “bouncing ball” series of wooden trills. Woodland Kingfisher is similar, but Mangrove is separated by its grayer head and all-red bill. Immatures of the two species are very similar, but Mangrove usually shows a red bill with a black tip, as opposed to a mostly black bill in Woodland.
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