Streak-crowned Antvireo
Dysithamnus striaticeps
This plump little forest bird has a large head and short tail. Not striking, but distinctive in limited range. Male grayer, female browner. Look for small white spots on wing and faint streaks on throat and chest. Both sexes have streaked crown, although male is gray and female is rufous. Often seen following a mixed-species flock; sticks to the lower levels in the forest.
识别特征
The streak-crowned antvireo is 10 to 11 cm (3.9 to 4.3 in) long and weighs 15 to 17 g (0.53 to 0.60 oz). Adult males have a dark gray forehead, crown, and nape with heavy grayish white streaking. Their ear coverts are blackish. Their upperparts are grayish olive with a hidden white patch between the scapulars. Their flight feathers are dark grayish olive with wide buffy grayish edges; their wing coverts are blackish with white tips. Their tail is dark grayish olive with narrow white tips on the feathers. Their throat and breast are white with prominent dark streaks, their sides olive-gray, their belly whitish, and their undertail coverts whitish with a yellowish tinge. Adult females have a rufous crown and nape with dark spots. Their wing coverts are less black than the male's and their breast and flanks are ochraceous. Subadult males resemble adult females but with grayer upperparts and whiter underparts.
分类信息
The streak-crowned antvireo is monotypic. It and the spot-crowned antvireo (D. puncticeps) are closely related and may form a superspecies.
- 学名
- Dysithamnus striaticeps
- 命名信息
- Lawrence, 1865
- 目
- Passeriformes
- 科
- Thamnophilidae
- 属
- Dysithamnus
分布与栖息地
The streak-crowned antvireo is found from extreme southeastern Honduras along the Caribbean slope through Nicaragua and most of Costa Rica, and also across northern Costa Rica into Guanacaste Province. It primarily inhabits the understorey to mid-storey of evergreen forest in the lowlands and foothills, and much less frequently is found in mature secondary forest. In elevation it ranges from sea level to 400 m (1,300 ft) in Honduras and to 800 m (2,600 ft) in Nicaragua and Costa Rica.
- 迁徙
- Resident species
行为
Migration pattern: Resident species.
保护状况
Population trend: declining.
- 种群趋势
- declining
照片
分布
鸟叫声
其他鸟类
Jandaya Parakeet
Aratinga jandaya
Strikingly colored parakeet with a yellow head and chest, orange around the eyes and bill, orange on the belly, and blue flight feathers. Highly gregarious and noisy; can be seen flying over forests, woodlands, and agricultural areas, as well as in cities.
White-breasted Wood-Wren
Henicorhina leucosticta
Very small, stub-tailed wren of humid tropical lowland forest. Favors forest understory, where usually found near or on the ground. Heard far more often than seen, and is notably elusive, even in fairly open understory. Common call is a metallic “peenk”; rather froglike and difficult to trace. Varied whistled songs rather short, usually introduced with a quiet whistled hiss. Note the boldly striped face, white bib, rich dark brown upperparts, and short tail. Gray-breasted Wood-Wren occurs in highlands.
Waved Woodpecker
Celeus undatus
Medium-sized woodpecker of rainforest. Note compact shape and uniform brown coloration with a pale bill. Often with mixed-species flocks, occurring from the mid-story to the canopy. Also occurs in lower-stature forests with sandy soils. Climbs trunks and large branches in typical woodpecker fashion; explores bark crevices and arboreal termite nests. Usually first detected by its distinctive nasal call. Superficially similar to Chestnut Woodpecker but is less richly colored and much smaller.
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