Chestnut-bellied Hummingbird
Saucerottia castaneiventris
Endangered hummingbird with a small range in the northern part of Colombia’s eastern Andes and in the San Lucas Mountains. Note the reddish-orange belly and bright rusty tail. Females and younger birds are duller than adult males and might be confused with Rufous-tailed Hummingbird, but lack green on the flanks. Inhabits lighter woodland and forest edge, and generally avoids dense forest.
识别特征
The chestnut-bellied hummingbird is about 9 cm (3.5 in) long. Both sexes have a black bill with a red base to the mandible. The adult male has bronze-green upperparts and a chestnut tail. Its throat and upper breast are glittering green, the belly chestnut, and the undertail coverts chestnut with greenish edges. The female is similar but with a slightly paler belly and white bars near the end of some throat feathers. Immatures are similar to the female with rufous edges on the feathers of the neck and rump.
分类信息
The chestnut-bellied 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 chestnut-bellied hummingbird was moved by most taxonomic systems to the resurrected genus Saucerottia. However, BirdLife International's Handbook of the Birds of the World (HBW) retains it in Amazilia.<p>The chestnut-bellied hummingbird is monotypic.
- 学名
- Saucerottia castaneiventris
- 命名信息
- (Gould, 1856)
- 目
- Apodiformes
- 科
- Trochilidae
- 属
- Saucerottia
分布与栖息地
The chestnut-bellied hummingbird appears to be restricted to the dryer parts of the Magdalena Valley of Colombia, with a core known range in the Chicamocha, Suárez and Chucurí River valleys. As of 2019 it was known from at least 14 sites. However, it is not regularly documented at most of them, perhaps because of unknown seasonal movements. Most records are from arid brushy canyons with a few from the lower edges of humid montane forest. Most records are from elevations between 500 and 1,500 m (1,600 and 4,900 ft) but some extend to between 340 and 2,200 m (1,100 and 7,200 ft) and one is at 120 m (390 ft).
- 迁徙
- Vertical migration
行为
Migration pattern: Vertical migration.
保护状况
Population trend: declining.
- 种群趋势
- declining
照片
分布
鸟叫声
其他鸟类
Burchell's Coucal
Centropus burchellii
A large, robust, ungainly cuckoo with rufous wings and a long, broad tail. The underparts and back are streaked, and it has a distinctive white eyebrow. The rump and upper tail coverts are barred, unlike other coucals. It often moves clumsily, preferring to clamber about in rank vegetation or walk on the ground foraging for insects or small vertebrates. Its flight is labored and heavy. This species uses a wide variety of habitats with a thick understory, including savanna, woodland, forest edge, and wetlands. The song is a descending bubbling series, “bu-bu-bu bu bu bu bu”, that falls and then rises in pitch.
Buru Jungle Flycatcher
Eumyias additus
A stout-billed flycatcher with brown upperparts, rufous tail and wings, and white underside, with subtle darker streaks on the breast. Inhabits forests in the lower foothills and mountains. No similar flycatchers in its limited range on the island of Buru. Note whitish underside, faint breast streaking, and relatively broad bill for a flycatcher. Gives a slow, deliberate whistled song with around twenty clear fluty notes that only slightly fluctuate in pitch.
Arfak Astrapia
Astrapia nigra
A long-tailed bird of montane forest canopy. Male has much longer tail with iridescent green belly, black chest and small, iridescent blue throat patch. Female is blackish with indistinct barring on the belly. Feeds on fruit and searches for insects on mossy branches and epiphytes. Somewhat similar to Black Sicklebill but Arfak Astrapia lacks the long, curved bill. Call, a relatively low “clup!” that sounds somewhat like banging 2 large stones together.
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