Allen's Gallinule
Porphyrio alleni
When seen in good light, shows spectacular purple-and-green coloration. In dull light, looks dark, but still shows red bill and feet, pale blue forehead shield, and white undertail. Juveniles are pale brown. Found in freshwater wetlands with thick vegetation, especially water lilies. Inconspicuous and shy, and will rarely emerge for long from thick cover. Call is a mournful wailing. Similar in coloration to African Swamphen, but slimmer and smaller, with a much smaller bill. Also similar to Eurasian Moorhen, but slimmer and smaller, with brighter coloration, red legs, and no yellow tip to the bill.
识别特征
They are similar in size to the only slightly larger water rail. The Allen's gallinule has a short red bill, greenish back and purple upperparts. They have red legs with long toes, and a short tail which is white with a dark central bar underneath. Breeding males have a blue frontal shield, which is green in the female. Immature Allen's gallinules are sandy brown with a buff undertail. The downy chicks are black, as with all rails. They nod their heads as they swim.
分类信息
Its former binomial name is Porphyrula alleni. Porphyrio is the Latin for "swamphen", and alleni, like the English name, commemorates British naval officer Rear-Admiral William Allen (1792–1864).
- 学名
- Porphyrio alleni
- 命名信息
- Thomson, 1842
- 目
- Gruiformes
- 科
- Rallidae
- 属
- Porphyrio
分布与栖息地
Its breeding habitat is marshes and lakes in Sub-Saharan Africa. Remarkably, this apparently weakly flying bird is not only the only species with a purely sub-Saharan African range to have reached Great Britain, but has done so twice. It has also occurred as a vagrant in several other European countries.
- 迁徙
- Complete migrants
保护状况
- 种群趋势
- declining
照片
分布
鸟叫声
其他鸟类
Foothill Schiffornis
Schiffornis aenea
Very plain bird of cloud forest along the east slope of the Andes in Ecuador, northern Peru, and far southern Colombia. It usually looks dull brown and featureless, though it may show an olive tinge and paler chin if seen in bright light. Sexes look alike. It is one of several species that together were formerly known as Thrush-like Schiffornis; they differ in range, voice, and elevation. Often best identified by its frequently given song: a wavering whistle that seems out of tune, rising and falling in pitch several times. Stays in the forest understory, and often perches motionless for long periods.
Qilian Bluetail
Tarsiger albocoeruleus
A newly described species endemic (at least as a breeder) to a few pockets of northern China. Essentially visually identical to Red-flanked Bluetail: adult male is sky-blue above and pale below, with orange sides and a small white eyebrow. Female and juvenile are more subdued, but still have the rufous flanks and blue tail. Breeds in humid montane forest, often favoring mossy, damp areas. Wintering range and habits essentially unknown, but probably overlap those of Red-flanked Bluetail. Can be hyperactive, moving quickly across the forest floor, stopping to flick the tail downwards. Best identified by range and distinctive song: a short, descending sweet yet burry phrase repeated regularly, very different from the song of Red-flanked Bluetail. Also has a variety of calls that are less distinctive, including a rising “sweet”, a descending “seet”, and a series of low, dry notes.
Dusky Lory
Chalcopsitta fuscata
Fairly large lory of lowlands and foothill forest and edge. Mainly dark plumage, with 2 obvious bands across the chest and a red bill. Coloration varies from yellow to red. In flight, bright yellow patch in the wing is highly visible. Distinctive fast and straight flight. Often seen flying high in large flocks. Somewhat similar to Black, Brown and Yellow-streaked Lories, but Dusky has a red rather than black bill and different flight. Coconut Lorikeet shows bright red in the fore wing. Very vocal. Noisy, high-pitch, ringing screeches.
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