Silvery-fronted Tapaculo
Scytalopus argentifrons
Tapaculos are small, plump, short-tailed, mostly gray birds that are as sneaky as mice. Silvery-fronted is the only tapaculo in its range, and the male has a distinctive whitish eyebrow. Also look for browner flanks with dark bars. Females don’t have the white eyebrow but are still distinctive in range because of the overall dark color and extremely furtive habits. Rarely seen well; stays on or near the ground in the forest understory. Listen for the song: a series of chips starting off fast, gradually getting slower and louder.
识别特征
The silvery-fronted tapaculo is 11 cm (4.3 in) long and weighs 17 g (0.60 oz). The male of the nominate subspecies is mostly sooty black; the lower breast and belly are paler. The flanks and crissum (the area around the cloaca) are brownish red. It has a silvery forehead (the "front") and a white supercilium. The male Chiriqui is darker with a less prominent supercilium. The females of both subspecies do not have a supercilium; their upper parts are dark brown, the throat and breast are dark gray, the belly blackish, and the flanks and crissum brighter brownish red than the male's. The juvenile is similar to the female but darker with brown "scales" on the underparts.
分类信息
The silvery-fronted tapaculo has two subspecies, the nominate "silvery-fronted" Scytalopus argentifrons argentifrons and the "Chiriqui" S. a. chiriquensis. The Chiriqui subspecies has at times been considered a separate species.
- 学名
- Scytalopus argentifrons
- 命名信息
- Ridgway, 1891
- 目
- Passeriformes
- 科
- Rhinocryptidae
- 属
- Scytalopus
分布与栖息地
The silvery-fronted tapaculo is the only member of its family whose entire range is in Central America. (The Tacarcuna tapaculo, S. panamensis, is found in far southern Panama and Colombia.) It inhabits the Talamancan montane forests at elevations of 1,000 to 3,000 m (3,300 to 9,800 ft). The Chiriqui subspecies is found only in western Panama. The nominate S. a. argentifrons has the wider range, from western Panama north through Costa Rica almost to the border with Nicaragua. If frequents thickets and bamboo in the undergrowth of humid primary forest and secondary forest, especially in ravines and along streams.
- 迁徙
- Resident species
行为
The silvery-fronted tapaculo forages for insects and other arthropods while creeping and hopping along the ground.<p>The silvery-fronted tapaculo's breeding phenology has not been described.<p>The silvery-fronted tapaculo's song is a series of notes that slow but get louder during its five to 10 second duration [1]. Its call is similar but shorter [2].
保护状况
- 种群趋势
- stable
照片
分布
鸟叫声
其他鸟类
Glossy-mantled Manucode
Manucodia ater
A large, long-tailed bird of lowland, open wooded areas, including mangroves. All black with red eyes and iridescence on the wings, back and tail. Some spotted iridescence on neck and chest. It has quite long-necked appearance. Co-occurs with Jobi and Trumpet Manucodes, but Glossy is larger and longer-tailed. Voice, an unpleasant, high-pitch whistle sounding a bit like microphone distortion. Sings from a high, open perch.
White-throated Antbird
Oneillornis salvini
Attractive ant-following antbird of mature rainforest. It is an obligate ant-follower, and is usually found in pairs or family groups around army ant swarms. The two sexes are uniquely distinctive: males are gray with a white eyebrow and throat and fine white tail barring; females are rusty orange with faint black patterning and fine black tail barring. While it follows army ant swarms through a variety of mature and secondary rainforest habitats, its territories are usually centered around areas of dense undergrowth within mature rainforest, like in upland ravines and around tree fall gaps. Its song is a distinctive slow, descending series of wheezy whistled notes.
European Turtle-Dove
Streptopelia turtur
Medium-sized dove with spotted wings, a distinctive striped neck patch and a bold white tip to the rounded tail. Found in wooded and semiopen habitats, especially farmland and heath with hedges and scattered trees. Usually rather shy; seen mainly in flight, but at times perched on utility wires. Feeds on ground, where it may associate with other pigeons. Appreciably smaller and slimmer than much commoner and overall paler Eurasian Collared-Dove. Extremely similar in plumage to Oriental Turtle-Dove, but has less extensive dark centers to the wing feathers and averages pinker on the breast.
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