Evening Grosbeak
Hesperiphona vespertina
Large finch, nearly twice the size of a goldfinch. Stocky with strong, thick, pale bill and short, notched tail. Males are stunning with dark head fading to bright yellow underparts, and mostly black wings with bright white secondaries. Females are overall gray with some white on the wing. Flocks often come to feeders for sunflower seeds. Found in forested regions especially at higher elevations. Populations declining dramatically.
识别特征
The evening grosbeak is similar in appearance to the Eurasian hawfinch, both being bulky, heavily built finches with large bills and short tails. The evening grosbeak ranges in length from 16 to 22 cm (6.3 to 8.7 in) and spans 30 to 36 cm (12 to 14 in) across the wings. In a large sampling of grosbeaks in Pennsylvania during winter, males weighed from 38.7 to 86.1 g (1.37 to 3.04 oz), with an average of 60 g (2.1 oz), while females weighed from 43.2 to 73.5 g (1.52 to 2.59 oz), with an average of 58.7 g (2.07 oz). Among standard measurements, the wing chord is 10.45 to 11.6 cm (4.11 to 4.57 in), the tail is 6 to 6.95 cm (2.36 to 2.74 in), the bill is 1.6 to 2 cm (0.63 to 0.79 in) and the tarsus is 1.95 to 2.2 cm (0.77 to 0.87 in). The adult has a short black tail, black wings and a large pale bill. The adult male has a bright yellow forehead and body; its head is brown and there is a large white patch in the wing. The adult female is mainly olive-brown, greyer on the underparts and with white patches in the wings. They also have a loud distinctive 'chew' call, similar to a glorified house sparrow.
分类信息
The evening grosbeak was formally described in 1825 by the American naturalist William Cooper and given the binomial name Fringilla vespertina. Cooper had been sent a specimen by the ethnologist Henry Schoolcraft that had been collected in the evening near Sault Ste. Marie, Michigan. Cooper recorded the name of the bird in the Ojibwe language as "Paushkundamo".<p>The IOC checklist and the Handbook of the Birds of the World place the evening grosbeak and the closely related hooded grosbeak in the genus Hesperiphona. However, the Clements Checklist and the AOS checklist place the evening and hooded grosbeaks in the genus Coccothraustes with the hawfinch.<p>The genus Hesperiphona was introduced by Charles Lucien Bonaparte in 1850. The name is from Ancient Greek hesperos meaning "evening" and phōnē meaning "sound" or "cry". The specific epithet is from Latin vespertinus meaning "of evening", "of twilight" or "crepuscular".<p>Three subspecies are recognised:
- 学名
- Hesperiphona vespertina
- 命名信息
- (Cooper, W, 1825)
- 目
- Passeriformes
- 科
- Fringillidae
- 属
- Hesperiphona
分布与栖息地
- 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
Charming Hummingbird
Polyerata decora
Nearly identical to Blue-chested Hummingbird but no range overlap. Male has glittering purple-blue throat, green back and crown, paler grayish belly, and dark tail. Female less obvious, with spotted chest; note the pink base to the lower mandible of the bill. She is smaller than most other female hummingbirds that have spotted chests, such as White-necked Jacobin. Usually seen fairly low at a forest edge or shrubby second growth.
Western Meadowlark
Sturnella neglecta
Streaked brown above and yellow below with distinctive black "V" on breast. In flight, short wings and spiky tail with white outer feathers are apparent. Breeds in fields and grasslands throughout much of western North America, regularly as far east as Michigan. Winters in a wider range of open habitats, even agricultural fields and roadsides. Extremely similar to Eastern Meadowlark and best distinguished by voice: listen for musical gurgling song and "chuk" calls. In winter, plumage looks paler and more washed-out than Eastern Meadowlark, with a less contrasting head pattern. Western is also more likely to be in flocks and areas with shorter grass (less pristine, extensive grasslands).
Rusty Blackbird
Euphagus carolinus
Rusty edges to feathers and pale eyebrow in winter contrast with blackish feather bases. Breeding males are glossy black. Shorter tail than Common Grackle. Thinner bill than Red-winged Blackbird. Found in wooded swamps. Often in flocks; frequently mixes with Red-winged Blackbirds and Common Grackle in winter. Look for flocks perched at tops of trees bordering marshes and listen for their calls to help pick them out from large flocks of blackbirds.
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