Indigo-capped Hummingbird
Saucerottia cyanifrons
Medium-sized hummingbird with restricted range in central Colombia. Distinctive: all green with a contrasting blue crown, white leg puffs, and reddish lower mandible. Occurs in the middle to upper levels of forests, edges, and shrubby gardens from around 1,000 to 2,000 m. Visits feeders.
识别特征
The indigo-capped hummingbird is 7 to 10 cm (2.8 to 3.9 in) long and weighs about 5 g (0.18 oz). Both sexes have a black bill with a red base to the mandible. The adult male has an indigo-blue crown, shining green upperparts with a bronze to coppery gloss on the rump, and bronze to bluish black uppertail coverts. Its tail is deep steel blue. Its underparts are glittering golden green with undertail coverts that vary from bronze-green to dark bluish with whitish edges. The adult female's crown is turquoise-blue towards the rear and its throat feathers have a grayish bar near the end. Juveniles are like the female with a grayer belly.
分类信息
The indigo-capped hummingbird was formerly placed in the genus Amazilia. A molecular phylogenetic study published in 2014 found that the genus Amazilia was polyphyletic. In the revised classification to create monophyletic genera, the indigo-capped hummingbird was moved to the resurrected genus Saucerottia. However, BirdLife International's Handbook of the Birds of the World (HBW) retains it in Amazilia.<p>The indigo-capped hummingbird is monotypic.
- 学名
- Saucerottia cyanifrons
- 命名信息
- (Bourcier, 1843)
- 目
- Caprimulgiformes
- 科
- Trochilidae
- 属
- Saucerottia
分布与栖息地
The indigo-capped hummingbird is found in north and central Colombia, principally in Norte de Santander Department, the Magdalena River valley, and the upper Cauca River valley. It inhabits semi-open to open landscapes such as the edges of wet forest, savanna, shrubby areas, plantations, and gardens; most of these are fairly dry. It is most common between 1,000 and 2,000 m (3,300 and 6,600 ft) but regularly occurs down to 400 m (1,300 ft) in the breeding season and sometimes to near sea level. It also rarely occurs as high as 3,000 m (9,800 ft).
- 迁徙
- Vertical migration
行为
The indigo-capped hummingbird apparently makes seasonal elevational movements in response to availability of flowering plants.<p>The indigo-capped hummingbird forages for nectar and small arthropods at all heights of its habitat, but mostly in the uppermost stratum. Though it sometimes gathers with other indigo-capped hummingbirds at flowering trees, it is usually territorial and defends feeding patches from hummingbirds and other nectarivorous birds like bananaquits (Coereba flaveola). It usually captures arthropods by hawking from a perch in the canopy but does so occasionally by gleaning from foliage.<p>The indigo-capped hummingbird's breeding season apparently extends from April to at least July. The nest is a cup of moss, cobweb, and lichen. The clutch size is two eggs but nothing else is known about the species' breeding phenology.<p>The indigo-capped hummingbird's song is "a repeated buzzy, squeaky phrase 'tzuk-keee ... tsrp'." It also makes "a high, sharp 'tsit'" call, sometimes in a series.
保护状况
- 种群趋势
- stable
照片
分布
鸟叫声
其他鸟类
Gray-throated Sunbird
Anthreptes griseigularis
A small bird of lowland wooded areas with a fairly long, slightly curved, stout bill and yellow underparts. Male has a pale gray throat, a dark reddish cheek and wing patch, a purplish-blue forehead and shoulder, and bottle green on the sides of the throat, the back of the neck, and the crown. Female is fairly drab, with a grayish-brown head and an olive-green back and rump. Male unmistakable. Female similar to several other species, but larger, with a broader bill. Voice not well known, but probably gives a loud “whip!” similar to Brown-throated Sunbird.
Lilac-crowned Amazon
Amazona finschi
Relatively long-tailed, bright green parrot endemic to tropical lowlands and foothills in west Mexico. Uncommon. Found in forest, edge, and semiopen areas with forest patches. Most often seen flying overhead early and late in the day, often fairly high and usually in pairs or loose groups made up of pairs. Best field mark is the pale yellowish bill that contrasts with the dark red forehead (lilac crown is very hard to see). Like other parrots in the same genus, in flight shows a red patch on the flight feathers.
Red-faced Guan
Penelope dabbenei
Mostly arboreal guan endemic to the semi-humid forest with Podocarpus and alders of the mid-elevation east Andes in southern Bolivia and northeast Argentina. Often in ravines and river basins. The sympatric Dusky-legged Guan is more common, but shows grayish-blue skin around the eye. Tends to perch high in trees, singly or in pairs, and often found by far-carrying vocalizations given from high in trees. Note pale supercilium, dull pinkish legs, exposed red orbital skin and wattle.
开始您的观鸟之旅
在户外识别鸟类，并在下一次观察时随手查阅鸟类图鉴。