Dusky Hummingbird
Phaeoptila sordida
Rather drab, “female-plumaged,” medium-size hummingbird of arid scrubby habitats, including gardens and open woodlands. Feeds at all levels and usually wags and fans tail persistently while hovering—a good field character. Both sexes are dull bronzy green above and dingy, pale grayish below. Male has more extensive red on the bill and female has small whitish tail corners. Female Broad-billed Hummingbird similar, but brighter green above with very little range overlap.
识别特征
The dusky hummingbird is 9 to 10.6 cm (3.5 to 4.2 in) long. Males weigh about 4.3 g (0.15 oz) and females about 3.4 g (0.12 oz). Males have a bright red bill with a black tip. Their upperparts are bronze green to greenish bronze that is more browish or grayish on the crown and uppertail coverts. The tail is dull greenish bronze or grayish brown with a greenish gloss and dusky feather bases. It has a grayish streak behind the eye and dusky cheeks. It does not have an iridescent gorget like most other hummingbirds, but a deep gray throat with greenish flecks. Its underparts are slightly lighter gray down to the undertail coverts, which are buffy. It has white leg tufts. The female is much like the male. However, its bill is a duller red with a dark tip, its outer tail feathers have a blackish blue band near the end and brownish-gray tips, and its underparts are a paler gray.
分类信息
The dusky hummingbird was formerly placed in the genus Cynanthus. Based on a molecular phylogenetic study published in 2014 and a 2017 publication, the North American Classification Committee of the American Ornithological Society, the International Ornithological Committee (IOC), and the Clements taxonomy moved it to the resurrected genus Phaeoptila that had been introduced in 1861 by John Gould. However, as of 2020 BirdLife International's Handbook of the Birds of the World (HBW) retained it in Cynanthus.<p>The dusky hummingbird is the only species in genus Phaeoptila and has no subspecies.
- 学名
- Phaeoptila sordida
- 命名信息
- (Gould, 1859)
- 目
- Columbiformes
- 科
- Trochilidae
- 属
- Phaeoptila
分布与栖息地
The dusky hummingbird is found in southwestern Mexico from Michoacán and Morelos to Oaxaca. It inhabits arid scrub and other semi-open to open landscapes with some trees. In elevation it ranges between 900 and 2,200 m (3,000 and 7,200 ft).
- 迁徙
- Resident species
行为
The movement patterns of the dusky hummingbird, if any, have not been described.<p>The dusky hummingbird forages for nectar in the mid- to upper levels of trees. It also feeds on the flowers of a variety of columnar cacti and agave. It spreads and wags its tail while feeding. In addition to nectar it also feeds on small arthropods.<p>Dusky hummingbirds have been observered breeding in March, May, August, November, and December. The nest is a small cup of plant fibers lined with soft plant down and covered with leaf and bark bits. Three were noted between 1.2 and 2 m (4 and 7 ft) above the ground in shrubs. The incubation period and time to fledging are not known.<p>What is thought to be the dusky hummingbird's song is "a quiet, dry, chippering warble". It makes "dry, slightly buzzy chips" and a chattering call that is described as similar to that of the broad-billed hummingbird (Cynanthus latirostris) but "softer and more liquid or spluttering".
保护状况
- 种群趋势
- stable
照片
分布
鸟叫声
其他鸟类
Southern Bentbill
Oncostoma olivaceum
A tiny well-named flycatcher with a distinctive bent bill like a broken nose. It is olive-green above with paler yellowish underparts. Note the pale gray eyes. Inconspicuous; typically seen singly in the understory of lowland forest, edge, and second-growth. Best detected by trilling calls. Occurs from Panama to Colombia; no range overlap with similar Northern Bentbill.
Blue-black Grassquit
Volatinia jacarina
Fairly common little bird of weedy and brushy fields, farmland, and other open grassy areas in tropical lowlands and foothills. Note the very small size, brown plumage, and streaky breast, plus the pointed conical bill. Male’s blue-black breeding plumage is worn only in the summer wet season; molting birds and immatures are patchy blue-black and brown. In song display, male leaps into the air from grass stalk or fence, uttering a short buzzy phrase, repeated over and over.
Brown-capped Rosy-Finch
Leucosticte australis
The rosy-finch with the most restricted range in Colorado and northern New Mexico. Body is milk-chocolate brown. Look for pink highlights in the wings, tail, belly, and indistinct grayish-brown crown. Breeds at very high elevations; descends to slightly lower elevations in winter. Often in mixed flocks in winter with other rosy-finches. Feeds on seeds and insects. Look for them foraging on alpine snowfields. Visits feeders, primarily in winter.
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