Hainan Peacock-Pheasant
Polyplectron katsumatae
Rare and often excruciatingly difficult to find, this is the only large gray game bird on Hainan. Usually detected by the loud, scratching noises made by flipping and scuffling leaves as it forages. Very similar to the closely related Gray Peacock-Pheasant, with which it shares no range overlap. Gray overall with dark blue-green dots on the wings and tail. Male is longer-tailed, with a short bushy crest and a small patch of red skin around the eye.
识别特征
The bird was long considered a subspecies of grey peacock-pheasant or Polyplectron bicalcaratum. The Hainan peacock-pheasant is smaller, and it possesses a short crest and ruff (Johnsgard 1986).[full citation needed] It has red facial skin as opposed to grey in the yellow-orange facial skin of the grey peacock-pheasant. Beebe (1922)[full citation needed] noted various plumage differences between the two and considered them separate species.
分类信息
Due to lack of detailed taxonomic studies, whether it was truly a subspecies (Polyplectron bicalcaratum katsumatae) or a full species remained unclear. Scientists used molecular markers, including the complete mitochondrial cytochrome b gene and intron G of the nuclear ovomucoid gene, to reevaluate the taxonomy of the Hainan peacock-pheasant. The results showed phylogeographic monophyly and large genetic distance between the Hainan peacock-pheasant and the grey peacock-pheasant. Sequence differences corroborated the species-level distinction between these two peacock-pheasants, which were inferred to have diverged about 1.4±0.3 million years ago, near the time Hainan Island became separated from mainland China. BirdLife International has also decided to recognize the split of Polyplectron katsumatae from Polyplectron bicalcaratum.
- 学名
- Polyplectron katsumatae
- 命名信息
- Rothschild, 1906
- 目
- Galliformes
- 科
- Phasianidae
- 属
- Polyplectron
分布与栖息地
- 迁徙
- Resident species
保护状况
Due to a very low population density in tropical forest and declining population, it is now becoming severely endangered and should be regarded as the rarest species in the order Galliformes in China. Taking more conservation action immediately to protect this endangered island endemic is imperative.
- 种群趋势
- declining
照片
分布
其他鸟类
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Saucerottia hoffmanni
Fairly small dark hummingbird, green overall with dark blue tail. Straight, medium-length bill. Copper rump and absence of rufous wing flash help distinguish from other similar species. Sexes similar. Usually seen feeding singly in flowers along forest edge, shrubby second growth, and gardens.
Brown Pelican
Pelecanus occidentalis
Large and conspicuous, gray-brown bird of saltwater habitats. Strictly coastal; rarely seen on inland lakes. Very long bill with pouch for scooping up fish. Forages mainly by diving on fish from above. Frequently cues into fishing activity looking for handouts. Often flies in long lines close to water's surface.
Brown-backed Solitaire
Myadestes occidentalis
Slender, long-tailed thrush of mountain and foothill forests. Best known for its amazing song, given year-round; thus, sadly, often kept as a cage bird. Usually seen singly, perched quietly and rather upright at low to high levels in forest, but small groups can gather at fruiting trees with other species. Song sometimes given in fluttering display flight high over an open area between trees or above the canopy. Note the broken white eyering, narrow black whisker, and rich brown back.
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