Equatorial Graytail
Xenerpestes singularis
Streaky, warbler-like bird found in cloud forest along the east slope of the Andes in Ecuador and northern Peru. It has a gray back and wings, white underparts streaked with gray, and white eyebrows. Forehead is chestnut, but this can be very hard to see in the field. In foggy conditions, barred tail helps separate it from Gray-mantled Wren. Typically found in pairs that forage high in the canopy, and often joins mixed-species flocks. Song is a very long, gravelly chatter.
识别特征
The equatorial greytail is about 11.5 cm (4.5 in) long and weighs about 12 g (0.42 oz). It is a tiny furnariid that resembles a warbler. The sexes have the same plumage. Adults have buff and grayish grizzled lores and a thin buffy white supercilium on an otherwise grayish face. Their forecrown is rufous with black streaks and their rear crown, back, rump, and tail are olive-gray. Their wings are dusky with gray-brown coverts and thin medium brown edges to the flight feathers. Their underparts are creamy white with blurry gray streaks. Their iris is gray-brown, their maxilla slate gray to black, their mandible creamy to pale gray, and their legs and feet olive-brown. Juveniles differ from adults by having gray bars rather than streaks on their underparts.
分类信息
The equatorial greytail is monotypic. It shares genus Xenerpestes with the double-banded greytail (X. minlosi) and together they are sister species to the orange-fronted plushcrown (Metopothrix aurantiaca).
- 学名
- Xenerpestes singularis
- 命名信息
- (Taczanowski & Berlepsch, 1885)
- 目
- Passeriformes
- 科
- Furnariidae
- 属
- Xenerpestes
分布与栖息地
The equatorial greytail is found in the foothills of the east side of the Andes from Ecuador's Napo Province south slightly into northern Peru. It inhabits the interior and edges of humid montane forest. In elevation it ranges from 1,000 to 1,600 m (3,300 to 5,200 ft) in Ecuador and 1,050 to 1,700 m (3,400 to 5,600 ft) in Peru.
- 迁徙
- Resident species
行为
The equatorial greytail is a year-round resident throughout its range.<p>The equatorial greytail feeds on arthropods. It forages high in the forest's subcanopy and canopy. It forages singly, in pairs, and in small family groups and readily joins mixed-species feeding flocks. It gleans prey from foliage live and dead, sometimes hanging upside down on the underside of leaves, and also gleans from twigs and small branches.<p>The equatorial greytail's breeding season appears to start with nest building in January. The nest is a large ball of sticks suspended from a branch. Nothing else is known about its breeding biology.<p>The equatorial greytail's song is "a long and dry, almost insect-like and somewhat reeling trill that lasts 5 or more seconds, 'tzzzzzzzzzzzzzzzz' ". Its call is a dry "tsit".
保护状况
- 种群趋势
- declining
照片
分布
鸟叫声
其他鸟类
Black-throated Barbet
Tricholaema melanocephala
A medium-sized black-and-white barbet. Note the boldly striped face and the black throat patch. Found in dry savanna and thornscrub. Similar to Spot-flanked Barbet, but lacks spots on the flanks and has a dark rather than yellow eye. Also similar to Red-fronted Barbet, but lacks a red front, and has a black throat. The common call is a series of several nasal “kya” notes.
African Golden-Weaver
Ploceus subaureus
Breeding male is bright yellow, female is duller yellow, and non-breeding plumages are duller still. Has a reddish eye in all plumages. Breeds in and around reedbeds, but ranges widely into surrounding savanna and woodland. Vocalizations are typical of weavers: “chet” notes and a sizzling, “radio static” song. Other golden-weavers are similar, but never show reddish eyes.
Cinnamon Screech-Owl
Megascops petersoni
Small screech-owl with a scattered distribution in the Andes. It inhabits cloud forest in southeastern Ecuador and northern Peru, as well as a few locations in Colombia and Venezuela. Most birds have bright cinnamon-buff plumage, but some are brown and tan. Distinguished from the similar Rufescent Screech-Owl by the lack of any white marks on the shoulders, and by voice. Song is a fast, rising and falling series of soft “pu” notes. The speed at which the notes are given is quite variable.
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