White-collared Foliage-gleaner
Anabazenops fuscus
Large foliage-gleaner with a wedge-shaped bill. Found in the middle and lower levels of forests with bamboo where it acrobatically hangs upside-down on branches and searches for prey in clusters of dead leaves. Note the dark-brown face that is set off with a prominent pale eyebrow, a pale eyering, and a white collar. It is olive-brown on the back with a buff belly and rufous tail. The song is a loud and fast series of “jek-jek-jek” notes.
识别特征
The white-collared foliage-gleaner is about 20 cm (7.9 in) long. It has a large wedge-shaped bill. The sexes' plumages are alike. Adults have a well-defined whitish supercilium, grayish white lores, and a white malar area on an otherwise dark brown face. Their crown is a rich dark brown with a faint scalloped appearance. Their throat is white and their entire neck is circled with a wide white band. Their back and rump are a lighter brown than the crown and their uppertail coverts and tail are dark rufous. Their wings are the same brown as the back with a bright yellowish brown bend. Their upper breast is grayish buff with a tawny tinge that becomes a darker tawny-brownish lower breast and belly. Their flanks and undertail coverts are darker and browner than the breast and belly. Their iris is dark brown or dark reddish brown, their maxilla dusky brown with a pale horn edge, their mandible pale horn or pale gray, and their legs and feet olive-gray, brownish gray, or dark olive-brown. Juveniles are similar to adults with a tawny-buff tinge to the supercilium and underparts.
分类信息
The white-collared foliage-gleaner shares its genus with the bamboo foliage-gleaner (A. dorsalis). It is monotypic.
- 学名
- Anabazenops fuscus
- 命名信息
- (Vieillot, 1816)
- 目
- Passeriformes
- 科
- Furnariidae
- 属
- Anabazenops
分布与栖息地
The white-collared foliage-gleaner is found in southeastern Brazil from Bahia and Minas Gerais south into Santa Catarina. It inhabits montane evergreen forest, both primary and secondary, and is closely associated with large thickets of bamboo. In elevation it ranges between 350 and 1,200 m (1,100 and 3,900 ft).
- 迁徙
- Resident species
行为
The white-collared foliage-gleaner is a year-round resident throughout its range.<p>The white-collared foliage-gleaner feeds on arthropods. It usually forages in pairs and will occasionally join mixed-species feeding flocks. It forages mostly in the forest's middle levels; it will forage in the understory but only rarely does so on the ground. It acrobatically climbs vertical stems and gleans and probes for prey on them and among green and dead leaves. Much of its feeding is on bamboo.<p>The white-collared foliage-gleaner is assumed to be monogamous. It nests in a natural cavity in a branch. Nothing else is known about its breeding biology.<p>The white-collared foliage-gleaner's song has been described as a "high, musical, slightly lowered 'djepdjep---' " and as "low-pitched, evenly spaced 'tchook' notes...becoming louder after first few notes. It also makes a "distinctive high-pitched, squeaky 'chek, jééurr-jééurr-jééurr-jééurr-jééurr'...and [a] hoarse, syncopated 'wrr-jek, wrjejek, wrrjejek' ". Its alarm call is "a piercing 'ghéé-eh' ".
保护状况
- 种群趋势
- declining
照片
分布
鸟叫声
其他鸟类
Crested Cuckoo-Dove
Reinwardtoena crassirostris
A large gray and black cuckoo-dove with a distinctive fawn-colored crest which is not visible in flight. Found in primary and secondary forest across its range. Often heard at dawn and dusk giving its characteristic “wwwwwow whoop wow” calls from the canopy. Similar to Pied Cuckoo-Dove, though the two species’ range does not overlap. MacKinlay’s Cuckoo-Dove is smaller, slimmer, brown rather than gray, and has a much longer tail.
Rufous-capped Warbler
Basileuterus rufifrons
Attractive, perky, long-tailed warbler widespread in foothills and highlands, locally in lowlands. Favors brushy and weedy areas adjacent to woodland and scrub. Usually in pairs or small groups which hop around low in brush with tails cocked. Note white eyebrow, rusty cap, and yellow bib. Birds in southeast Mexico and Belize are extensively yellow below. Listen for its buzzy trills and chips, usually given in a multi-parted series. Once considered conspecific with Chestnut-capped Warbler.
Two-banded Warbler
Myiothlypis bivittata
Small, yellowish bird with a fine black bill and distinctive black stripes on head. Mostly green above and yellow below; has rufous or orange crown bordered by black, but crown color can be difficult to ascertain. Note olive eyebrow becoming yellow in front of eye, and bright pinkish-yellow legs. Inhabits dense understory of foothill forests along the eastern slope of the southern Andes and in the tepui region. Usually occurs in pairs or small family groups that forage actively for insects, often joining mixed-species flocks. Song in tepuis is a series of chips followed by a high-pitched, screeching note. In southern part of range, song is very different: a rich rollicking series of notes that may vaguely recall House Wren and is often given by pairs as a duet. In southern Andes, most similar to Golden-bellied Warbler but has olive (not entirely yellow) eyebrow; also similar to Golden-crowned Warbler but typically occurs at higher elevations and has olive (not whitish) eyebrow.
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