Greater Painted-Snipe
Rostratula benghalensis
A medium-sized, stunningly plumaged shorebird of grassy fields and marshes. Both sexes have a bright white “comma” around the eye and white underparts that extend up in an arc above the shoulder. As in phalaropes, the male is much duller than the female. The female has a bright reddish-brown head and greenish-tinged back and wings; the more cryptically colored male has a light brown head and brown upperparts dappled with orange and tan spots, thus more similar to snipe. Displaying female gives a series of owl-like hoots.
识别特征
The greater painted-snipe are medium-sized shorebirds found in wetland habitat. The birds display sexual dimorphism: females of the species are larger, heavier, and have bolder plumage than the males (see image, left). The females have "dark bronze green upperparts", and an area of castaneous feathers that extends from the lower head area to the chest. They also have a large white eyepatch. By contrast, the males are largely mottled grey and brown, with buff-coloured upper parts. This gives them very strong camouflage when they are in their nests.
分类信息
The greater painted-snipe was first described by Carl Linnaeus. The related species Rostratula australis of Australia is endangered, and was formerly a subspecies of R. benghalensis.
- 学名
- Rostratula benghalensis
- 命名信息
- (Linnaeus, 1758)
- 目
- Charadriiformes
- 科
- Rostratulidae
- 属
- Rostratula
分布与栖息地
Greater painted-snipe are very widely distributed; in mainland Africa as well as Madagascar and the Seychelles; in India, and Southeast Asia. Within Africa, they are found in the Nile River Valley and in the non-rainforested areas of Sub-Saharan Africa. They are notably absent from the eastern portion of Somalia, from the desert areas of Namibia, and from parts of Botswana and South Africa. Despite their wide distribution, they are uncommon within their range. There are between 31,000 and 1,000,000 mature individuals alive, according to BirdLife International. Although the greater painted-snipe inhabit a variety of wetland habitats, they prefer muddy areas with available cover (i.e., vegetation). They are also found on the edges of lakes and rivers, provided there is cover nearby, and in marshes and around swamps.
- 迁徙
- Resident species
行为
The greater painted-snipe is not a vocal species; apart from the breeding season, they are mostly silent. Females may make a "mellow hooting or booming" sounds to males.<p>They are usually found close to the fringes of reed beds along shorelines of marshes, swamps, ponds and streams.<p>Greater painted-snipe usually live solitarily or in pairs, but sometimes are found in large groups. They are rather shy and retiring, skulking close to the vegetation so that they can retreat to cover if disturbed. When flushed, the birds like rails, with their legs dangling.<p>Greater painted-snipe are almost always polyandrous. The female initiates courtship and usually mates with two males in a season, but may mate with up to four. Males of the species incubate the eggs and give parental care.<p>They feed on insects, crustaceans, molluscs and seeds.<p>The females court the males, are polyandrous with males incubating and raising the young. Chicks are buff coloured and have black stripes running along their length. Immature birds resemble the male but lack the broken dark band across the breast. Males are also known to carry the chicks to safety under the wings.[citation needed]<p>The birds are almost always polyandrous, but they may act monogamously in regions where their population density is especially low, such as in South Africa.<p>The nest is usually a shallow scrape in soft ground, lined with plant material and situated among grass or reeds at the water's edge; sometimes a pad of vegetation or a nest of grass and weeds. The breeding season is between April and July.[citation needed]
保护状况
R. benghalensis is as "Least Concern" by the IUCN, due to its large range and the relatively slow rate of population decrement.
- 种群趋势
- declining
照片
分布
鸟叫声
其他鸟类
Mangrove Rail
Rallus longirostris
Large, generally drab rail, of coastal salt lagoons and mangrove forests. Dull grayish-brown overall with few contrasting features; faintly barred gray-and-white on sides and pale orange bill. Listen for series of harsh "kek" notes or loud, rasping grunts erupting from marsh.
Striped Woodcreeper
Xiphorhynchus obsoletus
A medium-sized woodcreeper, widespread in the lowlands across most of Amazonia. Most obvious feature is the fairly straight, pale bill – however, it is not quite as perfectly straight as Straight-billed Woodcreeper (especially the upper mandible). Also note the buffy streaking on the head, back, and breast. Tends to be confined to riverine and varzea forest, usually in the lower to mid-levels, sometimes following a mixed-species flock. Perhaps most easily detected and identified by voice: listen for the rather harsh ascending trill
Striated Wren-Babbler
Ptilocichla mindanensis
A fairly small bird of lowland and foothill forest floor or dense undergrowth. Warm brown on the upperparts, crown, and sides, with fine buff streaks on the sides and blackish underparts heavily streaked white. Note the contrasting white throat, the black-and-white moustache stripes, and the white stripe from above the eye to the back of the head. Unmistakable in range. Voice includes a variety of medium-pitched whistles, including repeated piping, downslurred notes, plus complex jumbled songs and imitations of other bird species.
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。