Plumbeous Rail
Pardirallus sanguinolentus
Chickenlike rail seen at the edge of various wetlands, even in close proximity to human habitations. Uniformly dark gray below with a brown back, and red legs and eyes. Similar to Blackish Rail, but has a red spot at the base of the lower mandible, a blue patch at the base of the upper mandible, and a dark (not white) throat. The voice is a squeaky repetition of “truie, truie,” which can be heard all day.
识别特征
The blackish rail is 30 to 38 cm (12 to 15 in) long and weighs 170 to 230 g (6.0 to 8.1 oz). The sexes are alike. They have red eyes and legs. They have a green bill and in all but subspecies P. s. luridus the maxilla has a sky blue base and the mandible a bright red one. The nominate subspecies P. s. sanguinolentus has mottled brown upperparts and plain gray face and underparts. The other subspecies differ somewhat in size and plumage. P. s. luridus is the largest and P. s. zelebori the smallest. P. s. simonsi is more olive brown above and paler gray below than the nominate. P. s. tschudii also has paler underparts. P. s. landbecki is more more olive brown upperparts than the nominate and no mottling. P. s. luridus has no mottling on its upperparts and has paler gray underparts than the nominate.
分类信息
The plumbeous rail has previously been placed in the large genus Rallus, and also in genus Orygonax with the blackish rail (Pardirallus nigricans). Some authors propose that the blackish and plumbeous rails are conspecific, and they do form a superspecies. The plumbeous rail has these six subspecies:
- 学名
- Pardirallus sanguinolentus
- 命名信息
- (Swainson, 1838)
- 目
- Gruiformes
- 科
- Rallidae
- 属
- Pardirallus
分布与栖息地
The six subspecies of plumbeous rail are distributed thus. The species is found further south than any other South American rail.<p>The plumbeous rail inhabits a variety of landscapes characterized by water and vegetative cover. Examples include reed marshes (even small ones), ponds with floating vegetation, irrigated croplands, wet ditches through pasture, and oases in arid areas. In elevation it occurs mostly in the lowlands but ranges in some limited areas as high as 2,500 m (8,200 ft) and in a few locations up to about 4,000 m (13,000 ft)
- 迁徙
- Complete migrants
行为
Migration pattern: Complete migrants.
保护状况
Population trend: stable.
- 种群趋势
- stable
照片
分布
鸟叫声
其他鸟类
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Pachycephalopsis hattamensis
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Flammulated Pygmy-Tyrant
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