Caatinga Antwren
Radinopsyche sellowi
Small antbird with a long, graduated tail. Males are mostly gray with a black crown, white eyebrow, and paler underparts. Note the short black eye-line. Females have buff-edged crown feathers and pale buff underparts. Occurs in dry woodland and scrub (caatinga) including enclaves of savanna in the Amazon. Sometimes accompanies mixed-species flocks. Sings a short fast rattle: “wrrrrrru.” The male of the similar Black-capped Antwren has a longer and more distinct eye-stripe, and the male of the Large-billed Antwren has a longer, thicker bill.
识别特征
The Caatinga antwren is 10.5 to 11.5 cm (4.1 to 4.5 in) long and weighs 6.5 to 8 g (0.23 to 0.28 oz). Adult males have a black crown and nape. They have white lores, a long white to pale gray supercilium, and a short blackish streak behind the eye on an otherwise gray face. Their upperparts are mostly gray with a white patch between the scapulars. Their outer scapulars are blackish with white edges. Their wings are mostly black with white edges on the flight feathers and white tips on the coverts. Their tail is mostly black with large white tips on all feathers and white edges on the outer ones. Their underparts are gray-tinged white. Females are similar to males, but with dull buff edges on their forehead feathers, a fainter streak behind the eye, an olive tinge to their upperparts, and a pale buff tinge to their underparts.
分类信息
What is now the Caatinga antwren was originally described as Herpsilochmus sellowi after decades of being treated as part of the Bahia antwren (H. pileatus) complex. A study published in 2000 resulted in its recognition as a separate species. A 2021 phylogenetic analysis determined that the species did not belong in Herpsilochmus and the authors coined the new genus Radinopsyche for it. The South American Classification Committee of the American Ornithological Society, the International Ornithological Committee, and the Clements taxonomy soon adopted the new genus. However, as of December 2023 BirdLife International's Handbook of the Birds of the World retains the species in Herpsilochmus.<p>The Caatinga antwren's English name derives from its principal habitat. Its specific epithet honors Friedrich Sellow for his "important collections of natural history specimens from eastern Brazil, which numbered approximately 5,457 birds" and numerous mammals, invertebrates, plants, and geological materials.<p>The Caatinga antwren is the only member of its genus and has no subspecies.
- 学名
- Radinopsyche sellowi
- 命名信息
- (Whitney & Pacheco, 2000)
- 目
- Passeriformes
- 科
- Thamnophilidae
- 属
- Radinopsyche
分布与栖息地
The Caatinga antwren is found in north-central and eastern Brazil, in southern Pará and from Maranhão east to Rio Grande do Norte and south to Bahia and just into northern Minas Gerais. As its English name suggests, it is found primarily in the Caatinga, an area of semi-arid tropical vegetation found only in northeastern Brazil. It occurs mostly in semi-deciduous woodlands and mata-de-cipó and also in the ecotone between caatinga and cerrado. It usually shuns humid evergreen forest and arid scublands. In elevation it ranges mostly between 300 and 900 m (1,000 and 3,000 ft) but occurs locally as high as 1,100 m (3,600 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
Whiskered Wren
Pheugopedius mystacalis
Fairly large wren, found in foothills and subtropics from Venezuela to western Ecuador. More often heard than seen; listen for rich whistled song usually given in widely spaced repeated phrases. Rufous above and pale grayish below, with striped black-and-white face pattern. Black bars on tail, unlike similar Plain-tailed Wren, which is found at higher elevations. Sexes similar. Skulks in thickets and tangles at the forest edge, usually in pairs.
Atlantic Black-throated Trogon
Trogon chrysochloros
Yellow-bellied trogon with pale blue eyering and yellowish bill. Male has shimmering green-blue upperparts and chest; female is brown. Underside of tail barred black and white with large white tips. Found in forested areas, usually sitting still at low to middle heights (often lower than other trogons in range). From other trogons in range by combination of head and chest color, tail pattern, and voice. Listen for song: a slow, evenly-spaced series of 4-8 slurred whistled notes.
Reunion Cuckooshrike
Lalage newtoni
Fairly small, slim cuckooshrike in which males and females are strikingly different. Males are mostly gray with black wings and tail. Females have brown upperparts and white underparts with fine dark barring. Both sexes have some white in the tail. The juvenile is a drastically different-looking brownish bird with strong wing bars and unmarked buff underparts. Rare and local in montane forest on the island of Reunion. Gives a variety of vocalizations, including a quick series of identical whistles, a slower series of more nasal notes, and rough scolding calls. Within its small range, most similar to Reunion Bulbul, but easily separated by many details, including the lack of an orange bill.
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