Slaty Gnateater
Conopophaga ardesiaca
Small, compact bird found in the understory of humid, mossy mid-elevation montane forest. Males are dark gray with a brown back and cap; females are similar, with a reddish-orange face. Both sexes have white head plumes that are raised when agitated. Smaller and darker than antpittas, which are similar in body structure. Forages singly or in pairs. Listen for the male’s song, a series of raspy rising “bree?” notes, typically given early in the morning or at dusk.
识别特征
The slaty gnateater is 12.5 to 14 cm (4.9 to 5.5 in) long, and 57 specimens had a mean weight of 26.3 g (0.93 oz). The plumage is variable, but the typical male's head is mostly dark gray that continues through most of the underparts. The crown and upper parts are brown and the flanks and lower belly are brownish gray. It has a white tuft behind the eye. Birds in the Cochabamba Department of Bolivia are much darker. The female has more brown on the face, the white tuft is much smaller, and there is a white patch on the belly. The upper parts can be dark brown, olive brown, or rufous brown.
分类信息
The position of the slaty gnateater in linear format is unsettled. The International Ornithological Committee (IOC) and the Clements taxonomy place it differently within the gnateater family. There are several color variants, and "Further research and, probably, taxonomic revision [are] required." The slaty gnateater has two subspecies, the nominate Conopophaga ardesiaca ardesiaca (D'Orbigny & Lafresnaye, 1837) and C. a. saturata (von Berlepsch & Stolzmann, 1906).
- 学名
- Conopophaga ardesiaca
- 命名信息
- d'Orbigny & Lafresnaye, 1837
- 目
- Passeriformes
- 科
- Conopophagidae
- 属
- Conopophaga
分布与栖息地
The slaty gnateater inhabits the narrow band of the Yungas on the eastern slope of the Andes. C. a. saturata is found in Peru from southeastern Cusco Province south towards Bolivia. C. a. ardesiaca is found from the Department of Puno in southeastern Peru to Bolivia's Tarija Department. The species inhabits dense growth in rainforest, typically around treefalls, road edges, and similar openings. In elevation it typically ranges from 800 to 1,800 m (2,600 to 5,900 ft) but is found locally to 2,450 m (8,040 ft) in Peru.
- 迁徙
- Resident species
行为
The slaty gnateater forages for arthropods in leaf litter and foliage on and near the ground.<p>Very little is known about the slaty gnateater's breeding phenology. Specimens collected during June, July, and November in Bolivia were in breeding condition. In Peru, fledglings were observed in November.<p>The slaty gnateater's song is a "frog-like...'g-reep' or 'w-reeep'" [1]. Its most common call is a "tseet" [2].
保护状况
- 种群趋势
- stable
照片
分布
鸟叫声
其他鸟类
Bluish Flowerpiercer
Diglossa caerulescens
Dull blue-gray flowerpiercer found in the Andes from Venezuela to Bolivia. Dark reddish eye. Could be confused with Masked Flowerpiercer but duller overall without large black mask. Bill is less upswept than most flowerpiercers. Found singly or in pairs, often following a mixed-species flock through the forest canopy. Occurs from around 1,600-2,700m.
Marigold Lorikeet
Trichoglossus capistratus
A handsome long-tailed green parrot with a purple head, a red bill, and a striking yellow chest and collar. In flight, note conspicuous yellow underwings. Juveniles have a brown bill and are duller in color. Pairs and small groups inhabit a variety of forest types in the lowlands of its limited range in the Lesser Sundas. Differs from Olive-headed Lorikeet in being a larger, lowland species with a dark purple-colored head. Regularly gives ear-splitting shrieks.
Ghana Cuckooshrike
Lobotos lobatus
A spectacular cuckooshrike that resembles an oriole, with a yellow-green back, wings and tail, a dark head and bill, and large fleshy orange wattles under the eyes. The sexes differ: the underparts of the male are apricot and those of the female are yellow; she also has a less contrasting brownish head. Juvenile is like the female but barred above, with a less distinct head pattern. A rare bird found singly and in pairs in the canopy of primary and secondary lowland forest, often near water. Moves stealthily through the canopy, where it joins mixed-species parties; flight call is a thrush-like “tsik.” Differs from forest orioles by having a dark (not red) bill and fleshy wattles under the eyes.
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