Butterfly Coquette
Lophornis verreauxii
Tiny hummingbird with a white rump band and rusty tail. Adult male is stunning, with a flowing, glittering green beard ending in white spots, an iridescent green face, and a small crest. Female and young male are much plainer than male, but they typically have a white throat with dark patch in the middle, and lack the buffy or rusty tones on the underparts shown by females of several similar species. Distinguished from female Peacock Coquette by lack of streaking on the throat. Inhabits humid lowland and foothill forest and is quite scarce in most of its range. It was previously considered to be a subspecies of Festive Coquette.
识别特征
The butterfly coquette is 7.5 to 9.1 cm (3.0 to 3.6 in) long. The male of the nominate subspecies has a deep green head with a long, red-tipped, green crest and long green "whiskers" with white tips. Its back is green with golden highlights, deep reddish uppertail coverts, and a white band on the rump. The underparts are green but for white thighs and the tail is maroon. The female does not have the crest and "whiskers" but does have a whitish malar patch. The uppertail coverts are a less intense red than those of the male and it has golden highlights on the breast. Both sexes of subspecies L. v. klagesi are darker overall than the nominate, and their uppertail coverts are bronzy olive and the tail bronzy green.
分类信息
The butterfly coquette was formerly treated as a subspecies of the festive coquette (Lophornis chalybeus), and that species and the peacock coquette (L. pavoninus) were also for a time placed in genus Polemistria. In 2019 the South American Classification Committee (SACC) of the American Ornithological Society accepted the festive coquette as a separate species. The International Ornithological Committee (IOC) and BirdLife International's Handbook of the Birds of the World (HBW) adopted the split in 2020. The Clements taxonomy did not make updates in 2020 and adopted the split in 2021.<p>The butterfly coquette has two subspecies, the nominate L. v. verreauxii and L. v. klagesi.
- 学名
- Lophornis verreauxii
- 命名信息
- Bourcier, 1853
- 目
- Apodiformes
- 科
- Trochilidae
- 属
- Lophornis
分布与栖息地
The nominate subspecies of butterfly coquette is found from Amazonian Colombia, Ecuador, and Peru into Brazil as far east as Mato Grosso and south into central Bolivia. L. v. klagesi is restricted to the Río Caura watershed in Venezuela's Bolívar state. The species inhabits a variety of humid landscapes including riparian forest, white sand scrub forest, and terra firme forest. It also occurs in secondary forest and scrubby fields. In elevation it ranges as high as 1,000 m (3,300 ft).
- 迁徙
- Resident species
行为
The butterfly coquette is essentially sedentary, though some short-distance seasonal movement is thought to occur.<p>The butterfly coquette feeds on nectar, which is mostly sought in the canopy but also at lower levels. The species usually hovers to take nectar but has been recorded piercing the base of flowers to "steal" it. It has been observed trap-lining, visiting a circuit of flowering plants. It does not appear to defend a territory but will dispute conspecifics at a flower patch. The species also eats small insects that it apparently gleans from foliage.<p>The butterfly coquette's breeding phenology has not been studied nor have the nest and eggs been described.<p>The butterfly coquette is usually silent but makes "short tsip or chip" calls when feeding. One audio recording is available at Cornell University's Macaulay Library.
保护状况
- 种群趋势
- declining
照片
分布
其他鸟类
Rusty-winged Starling
Aplonis zelandica
A rather small, pale grayish-brown starling, paler on Vanikoro, with a smudgy black patch in front of the eye and distinctive rusty wings. Found in forest and secondary growth, especially montane forest. Similar to Polynesian Starling, but paler above, with a dark eye and more uniform wings. Common call is a melodious “zee-twee.”
Indian Nuthatch
Sitta castanea
Only nuthatch in most of its range with gray upperparts and brick-red underparts. From crown to upper mantle, the gray is a lighter shade than the remainder of the upperparts. Strong dark eye-stripe starts from the bill, broadening toward the sides of the neck, contrasting with the white throat. Female is similar but has lighter chestnut underparts and dirty white on the throat. In a narrow zone where it overlaps with the very similar Chestnut-bellied Nuthatch, Indian differs in the contrastingly paler crown and nape, the smaller bill, and the lack of white scallops on the vent. Primarily seen in deciduous forests; occurs in pairs or family groups, sometimes along with Velvet-fronted Nuthatches, with which it broadly overlaps in range. Call is a loud, mellow, rapid trill of 7-8 notes: “pi-pi-pi-pi-pi-pi.”
Uluguru Bushshrike
Malaconotus alius
A large, unusual bushshrike of Tanzania’s Uluguru Mountains with a huge bill, a black head, a green back, and yellow underparts. Found in the canopy of montane forest, usually in pairs. Most often detected by the distinctive and unusual voice, which consists of sliding whistles given in pairs, one lower and one higher, along with well-spaced ratcheting notes. These two vocalizations are usually synchronized as a duet by a pair.
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