Silver Pheasant
Lophura nycthemera
Large and spectacular pheasant found in forested areas. Variable across its large range, but the long-tailed male has either white or silvery-gray upperparts with a black crest, breast, and belly. Northern males are whiter above than their southern counterparts, though they still have some light black markings on the wings and back. Females are brownish overall with a much shorter tail. Both sexes have bright red face and legs. Hybridizes extensively with Kalij Pheasant where ranges overlap, producing variable intermediate hybrids.
识别特征
This is a relatively large pheasant, with males of the largest subspecies having a total length of 120 to 125 cm (47 to 49 in), including a tail up to 75 cm (30 in), while the males of the smallest subspecies barely reach 70 cm (28 in) in total length, including a tail around 30 cm (12 in). The body mass of males can range from 1.13–2.00 kg (2.49–4.41 lb). Females of all subspecies are notably smaller than their respective males, with a size range of 55–90 cm (22–35 in) in total length, including a tail of 24–32 cm (9.4–12.6 in). The body mass of females can range from 1.0–1.3 kg (2.2–2.9 lb).<p>Males of the northern subspecies, which are the largest, have white upperparts and tail (most feathers with some black markings), while their underparts and crest are glossy bluish-black. The males of the southern subspecies have greyer upperparts and tail with extensive black markings, making them appear far darker than the northern subspecies. The adult male plumage is reached in the second year.<p>Females are brown and shorter-tailed than males. Females of some subspecies have whitish underparts strongly patterned with black, and in L. n. whiteheadi this extends to the upper mantle.
分类信息
Like other pheasants, the silver pheasant was placed in the genus Phasianus when described by Carl Linnaeus in his landmark 1758 10th edition of Systema Naturae. Since then, it – or at least some of the subspecies associated with it – have been placed either in Euplocamus or Gennceus. Today all major authorities place the silver pheasant in Lophura.<p>The silver pheasant is closely related to the kalij pheasant and the two are known to hybridize. The placement of the taxa L. n. lineata and L. n. crawfurdi has been a matter of dispute, with some treating them as subspecies of the kalij pheasant and others as subspecies of the silver pheasant. They have greyish legs as in the kalij pheasant, but their plumage is closer to that of some subspecies of the silver pheasant. Additionally, as the silver pheasant, L. n. lineata and L. n. crawfurdi are found east of the Irrawaddy River, a major zoogeographic barrier, while all other subspecies of the kalij pheasant are found west of the river (L. n. oatesi, a subspecies of the kalij pheasant, has sometimes been reported as occurring east of that river, but this is incorrect). Based on mtDNA, it was recently confirmed that L. n. lineata and L. n. crawfurdi should be regarded as subspecies of the kalij pheasant.<p>With these two as subspecies of the kalij pheasant, the silver pheasant has 15 subspecies. However, while some subspecies are relatively distinctive, several others (at least L. n. rufipes, L. n. occidentalis, L. n. ripponi, L. n. jonesi, L. n. beaulieui, L. n. nycthemera, and L. n. fokiensis) are likely part of a cline, which if confirmed, would result in them being junior synonyms of the nominate subspecies. Several other taxa, for example L. n. andersoni, are now considered invalid by all major authorities.<p>Once considered a very rare species, the imperial pheasant is actually a naturally occurring hybrid between the silver pheasant and the Vietnamese pheasant.<p>The 15 recognized subspecies of the silver pheasant are, in taxonomic order:
- 学名
- Lophura nycthemera
- 命名信息
- (Linnaeus, 1758)
- 目
- Galliformes
- 科
- Phasianidae
- 属
- Lophura
分布与栖息地
- 迁徙
- Resident species
保护状况
- 种群趋势
- declining
照片
分布
鸟叫声
其他鸟类
Citreoline Trogon
Trogon citreolus
Handsome yellow-bellied trogon found only in west Mexico, where no other yellow-bellied trogons occur. Found in arid to semiarid woodlands, thorn forests, plantations, hedgerows, and other semiopen areas with taller trees, including gardens. Perches mainly at middle to upper levels. Sometimes found in small groups at fruiting trees. As well as the yellow belly, note the pale yellow eyes (duller on immatures) and mostly white underside to the tail, with no dark barring.
Streak-throated Swallow
Petrochelidon fluvicola
A small brown-black swallow with a short tail and comparatively weak flight. The forehead, crown, and back of the neck are dull chestnut with faint dark streaks. The back is glossy deep blue with a few narrow whitish streaks; the rump is pale brown and is more prominent in flight. The wings and tail are blackish-brown, and the tail almost square-ended. Underparts are buffy white with blackish-brown streaks, especially the chin, throat, and upper breast. Juvenile is duller and browner than adult, with buff feather edges and faint streaks on underparts. Found mostly as individuals in mixed swallow flocks; different, weaker flight action is characteristic.
White-fronted Tit
Sittiparus semilarvatus
A small, uncommon bird of lowland and foothill forest canopy and edge. Entirely dark with an obvious white mark from the forehead down between the bill and eye. Males are entirely black and females have dark brown underparts. Varies regionally, with Mindanao birds having an additional white mark in the wing. Unmistakable. Voice includes a downslurred series of three fairly high-pitched downslurred notes, “piu-piu piu.” Also gives a rapid staccato trill.
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。