Elegant Crescentchest
Melanopareia elegans
A striking little bird, shaped like a robust gnatcatcher. Note the bold black-and-buff head pattern, black chest fading to rufous flanks, and bright rufous on the wings. Tail is long and narrow. Unmistakable if seen well, but compare with Marañon Crescentchest, which has silvery wing edges and more richly-colored underparts. Secretive; singles or pairs skulk in dense thickets and understory of dry woodland and second growth, up to 2,300 m. More often detected by song; listen for a series of loud, popping chip notes.
识别特征
The elegant crescentchest is 14.5 cm (5.7 in) long. Males weigh 16.0 to 20.2 g (0.56 to 0.71 oz) and females 15.5 to 19.0 g (0.55 to 0.67 oz) Males of both subspecies have a black crown, nape, and mask and a creamy supercilium. The back and rump are olive-brown. Its throat is white or pale buff that is darker around the margins and a black "bib" is below it. The upper chest is dark chestnut fading to tawny on the flanks and belly. The nominate female is similar, but the crown is sooty and there is no dark chestnut on the chest. The female M. e. paucalensis is like the nominate except that its crown is the same olive-brown as the back.
分类信息
The crescentchests (genus Melanopareia) were previously included in family Rhinocryptidae, the tapaculos. A 2010 publication confirmed earlier work and created their present genus. The elegant crescentchest and the Marañón crescentchest (Melanopareia maranonica) might form a superspecies. Two subspecies of elegant crescentchest are recognized, the nominate Melanopareia elegans elegans and M. e. paucalensis.
- 学名
- Melanopareia elegans
- 命名信息
- (Lesson, RP, 1844)
- 目
- Passeriformes
- 科
- Melanopareiidae
- 属
- Melanopareia
分布与栖息地
The elegant crescentchest is found discontinuously along the coast of Ecuador from Manabí Province south into Peru as far south as the Department of La Libertad. The nominate is in Ecuador and M. e. paucalensis is in Peru, and birds in far southern Ecuador might be intergrades between the two subspecies. Its principal habitat is scrub and undergrowth in semi-arid woodland; it can also be found in more humid disturbed areas. In Ecuador it ranges from near sea level usually to 2,000 m (6,600 ft) and locally to 2,400 m (7,900 ft). It Peru it reaches only as high as 1,700 m (5,600 ft).
- 迁徙
- Resident species
行为
The elegant crescentchest's diet has not been reported. It forages alone by hopping through dense cover on and near the ground.<p>Almost nothing is known about the elegant crescentchest's breeding phenology. Three nests have been described. They were constructed of dry strips of cactus and weeds, were enclosed with a side entrance, and hidden on the ground.<p>The elegant crescentchest's song is "a series of..."chuck" notes" [1]. Its scold call is "a dry penetrating churr" [2].
保护状况
- 种群趋势
- rising
照片
分布
鸟叫声
其他鸟类
Masked Gnatcatcher
Polioptila dumicola
Bold patterned gnatcatcher usually found in the canopy of savanna, open woodlands, and forest edges where it may join mixed-species flocks. Largely grayish overall with a white-edged black tail. Males have a black mask while females have a small black ear patch on a generally pale face. Males of the subspecies from Northwest Brazil are whiter below and grayish in other populations.
North Island Brown Kiwi
Apteryx mantelli
A large, dark grayish brown kiwi with reddish brown streaking. The only kiwi found in the wild on the mainland of New Zealand’s North Island. Found in both native and exotic forest, scrub, and neighboring farmland. More often heard than seen. Male call is a series of clear rising whistles. Female call is a harsh throaty wail. Both sexes repeat their call many times. Often heard at night foraging as it sniffs loudly, tapping the ground for invertebrates. Could be confused with Weka by voice and shape; look for the kiwi’s much longer bill and lack of tail, and listen for its multisyllabic call.
Bell's Sparrow
Artemisiospiza belli
Brownish sparrow with gray head and white breast with dark central spot. Very similar to Sagebrush Sparrow and once considered the same species. Bell's Sparrow is usually darker and more contrasty overall. Also note Bell's Sparrow's relatively dark and broad mustache stripe and plainer back with only indistinct, thin streaks. Found in shrubby expanses of sagebrush, primarily in California and Baja (more restricted than Sagebrush, essentially only overlapping in winter). Perches up conspicuously when singing; otherwise stays low and hidden. Frequently runs on the ground, often with tail cocked up. Song is a jumble of mechanical, musical notes, faster than Sagebrush Sparrow.
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