Gray-breasted Sabrewing
Campylopterus largipennis
Large hummingbird of humid forests and semi-open habitats in Amazonia. Plain gray below and iridescent green above. Note large dark tail with white tips; also look for fairly heavy, slightly dropped bill and white spot behind eye. Occurs mostly in forest clearings or other semi-open habitats such as edges, tree fall gaps, and gardens. Forages at low- to mid-levels.
识别特征
The grey-breasted sabrewing is a large hummingbird, 12.4 to 14.9 cm (4.9 to 5.9 in) long. Males weigh 9 to 10 g (0.32 to 0.35 oz) and females about 7 to 8 g (0.25 to 0.28 oz). The sexes have almost identical plumage. Their bill is slightly decurved; the maxilla is black and the mandible pinkish with a black tip. The nominate subspecies' upperparts are dark shining green and the underparts dark gray. They have a white spot behind the eye. Their central pair of tail feathers is green and the rest bluish black on their inner half and white on the outer. Subspecies C. l. obscurus (with C. l. aequatorialis) is smaller than the nominate and its outer tail feathers' ends are usually gray rather than white.
分类信息
The grey-breasted sabrewing was described by the French polymath Georges-Louis Leclerc, Comte de Buffon in 1780 in his Histoire Naturelle des Oiseaux from a specimen collected in Cayenne, French Guiana. The bird was also illustrated in a hand-colored plate engraved by François-Nicolas Martinet in the Planches Enluminées D'Histoire Naturelle which was produced under the supervision of Edme-Louis Daubenton to accompany Buffon's text. Neither the plate caption nor Buffon's description included a scientific name but in 1783 the Dutch naturalist Pieter Boddaert coined the binomial name Trochilus largipennis in his catalogue of the Planches Enluminées. The grey-breasted sabrewing is now placed in the genus Campylopterus that was erected by the English naturalist William Swainson in 1827. The generic name combines the Ancient Greek kampulos meaning "curved" or "bent" and -pteros meaning "-winged". The specific epithet largipennis combines the Latin largus meaning "ample" and -pennis meaning "-winged".<p>The further taxonomy of the grey-breasted sabrewing is unsettled. The International Ornithological Committee (IOC) assigns three subspecies, the nominate C. l. largipennis (Boddaert, 1783); C. l. obscurus Gould, 1848; and C. l. aequatorialis Gould, 1861. The Clements taxonomy and BirdLife International's Handbook of the Birds of the World (HBW) recognize only two by including aequatorialis within obscurus. In addition, C. l. obscurus has been suggested as a separate species.<p>What are now the outcrop sabrewing (C. calcirupicola) and Diamantina sabrewing (C. diamantinensis) were formerly treated as subspecies of the grey-breasted.
- 学名
- Campylopterus largipennis
- 命名信息
- (Boddaert, 1783)
- 目
- Apodiformes
- 科
- Trochilidae
- 属
- Campylopterus
分布与栖息地
The three subspecies of grey-breasted sabrewing recognized by the IOC are distributed thus:<p>The species inhabits humid primary and secondary forest, clearings within them, and plantations. In elevation it ranges between 100 and 800 m (330 and 2,600 ft).
- 迁徙
- Resident species
行为
The grey-breasted sabrewing is a year-round resident throughout its range.<p>The grey-breasted sabrewing forages for nectar at a variety of flowering plants, usually at low to medium heights. Males defend feeding territories. In addition to nectar, the species captures small insects by hawking from a perch.<p>The grey-breasted sabrewing's breeding seasons differ greatly among the parts of its large range. It makes a cup nest of moss lined with soft seed material and decorates the outside with lichen. It places it like a saddle on a horizontal branch or attaches it to hanging twigs, typically near waterfalls or running streams and within about 1 m (3 ft) of the ground. The incubation period and time to fledging are not known.<p>The grey-breasted sabrewing makes "repeated short chik or trzik" calls and "occasionally a faster stuttering series." What is thought to be its song is the "same call note delivered in a more regular continuous series."
保护状况
- 种群趋势
- declining
照片
鸟叫声
其他鸟类
Tyrannine Woodcreeper
Dendrocincla tyrannina
Fairly large woodcreeper found in the subtropical zone in the Andes from Colombia to Peru. Very plain warm brown with few markings, save for some vague paler streaking on the head and throat. Rather long, straight bill. All other woodcreepers found at similar elevations have much more streaking. Compare with Plain-brown, which is found at lower elevations. Uncommon in montane forest, usually following a mixed-species flock.
Olive-backed Flowerpecker
Pachyglossa olivacea
A tiny bird of lowland and foothill forest and edge. Golden-olive above, darker on the edge of the wing, with white underparts and dark gray from the sides of the throat becoming broad streaks on the sides of the chest. Note the slightly hooked bill and the red eye. From below, somewhat similar to Pygmy Flowerpecker with its dark sides, but Olive-backed has a golden-olive back. Voice includes a sweet, high-pitched upslurred whistle and a sharp “tsik!” call, sometimes run together in a rapid series.
White-fronted Ground-Tyrant
Muscisaxicola albifrons
Largest ground-tyrant, usually identified readily by (relatively) big size and high Andean range. Usually seen as singles or pairs foraging on bogs, but also ranges into adjacent rocky puna habitats. Plumage rather plain overall with contrasting dirty whitish forehead patch; pale wing edgings create distinctive “frosty-winged” appearance in flight. Confusion only likely with smaller Ochre-naped Ground-Tyrant, on which ochre nape can be hard to see.
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。