Plumbeous rail

The plumbeous rail (Pardirallus sanguinolentus) is a species of bird in the subfamily Rallinae of the rail, crake, and coot family Rallidae. It is found in Argentina, Bolivia, Brazil, Chile, Ecuador, Paraguay, Peru and Uruguay.

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 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.