Hermit Warbler
Setophaga occidentalis
Yellow-faced warbler of western coniferous forests. Males are almost entirely yellow-headed with black nape and throat, gray upperparts with white wingbars, and whitish underparts. Females much duller with pale throat and dingy gray belly, and always show a blank yellow face (some with faint olive cheek patch). Hybridizes with Townsend's Warbler where ranges overlap. Favors conifers on breeding and wintering grounds. Migrants found in a variety of wooded habitats. Feeds on insects, often high in treetops.
识别特征
Hermit warblers are dark gray in coloration on top, and white below, and their flanks are streaked with black. The wings have two diagonal white wing bars. The majority of the hermit warbler's head is yellow, and males have a dark black throat, while females have much less black on their throat bib and immature birds have no black throat. Both males and females measure 5.5 inches (14 cm) in length, 0.3 to 0.5 oz (8.5 to 14.2 g) in weight, and 7.9 in (20 cm) in wingspan.
分类信息
Genus: Setophaga; Family: Parulidae; Order: Passeriformes.
- 学名
- Setophaga occidentalis
- 命名信息
- (Townsend, JK, 1837)
- 目
- Passeriformes
- 科
- Parulidae
- 属
- Setophaga
分布与栖息地
Hermit warblers are common, but incredibly shy, birds that dwell in open coniferous forests. They are also found in wetter habitats for nesting, and in various mountain habitats. Their summer breeding range is the majority of the west coast of the United States up to Washington. They will sometimes winter in south-west California, but they are migratory and will winter in Central America as far south as Panama. Other nesting habits are mostly unknown. During migration they can be found in both coniferous and deciduous habitats as well as water lined wooded areas, desert oases, and in suburban areas. You can usually find these birds in Tall Coniferous forest, Douglas fir, Pine, Redwood, and in the mountain like areas.<p>The range of the hermit warbler is expected to change as the climate warms, the breeding range expected to expand north and east but lose much of the current range in Northern California as well as some range in parts of Oregon, Washington, and Canada. Extreme warming will put them at risk of heat waves as well as flooding during the nesting season.
- 繁殖区
- NA : w USA
- 非繁殖区
- MA
- 迁徙
- Complete migrants
行为
Migration pattern: Complete migrants.
保护状况
Population trend: stable.
- 种群趋势
- stable
照片
分布
鸟叫声
其他鸟类
Montserrat Oriole
Icterus oberi
A slim species of mountain forests where it feeds on insects at middle elevation. Males have a black head, chest, and back that contrast with a yellow belly and rump. Females are dull yellow-green above and dingy yellow below. Montserrat Orioles are larger than warblers, vireos, and tanagers and they have a long, relatively thick-based and sharply tipped bill. No similar species occur within its range. Vocalizations include loud whistles and harsh chrrrr-like calls.
Yellow-breasted Brushfinch
Atlapetes latinuchus
A variable brushfinch found in montane forests and edges from Venezuela to Peru. Yellow below and dark above with mostly black face and rufous crown. Back color varies from greenish to gray to black. Some populations show small white patch on wing. Sexes similar. Despite confusing variation and taxonomic uncertainty, the combination of yellow underparts and rufous crown help identify this species. Found close to the ground at edge of forest or in shrubby areas from 1,500–3,700 m. Usually in small groups, sometimes following a mixed-species flock.
Northern Schiffornis
Schiffornis veraepacis
Elusive, chunky brown bird of shady forest understory in humid tropical lowlands. Heard far more often than seen. Haunting, slurred whistle carries well and is easily imitated. Song given irregularly; not steadily repeated. Note the chunky build, drab dark olive-brown plumage with paler eyering accentuating big eye, and rather slender black bill. Tends to perch quietly and upright, then slips off like a ghost and not seen again.
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在户外识别鸟类，并在下一次观察时随手查阅鸟类图鉴。