P. L. Sclater, 1856,
Thought to be closely related to R. limicola and R. antarcticus; sometimes considered conspecific with latter, which differs, however, in its smaller size, involving a somewhat shorter bill, notably shorter wings and tarsi and strikingly shorter middle toe (at least 2); much brighter buff streaking above (2); bolder, more extensive and more regular black-and-white barring on flanks (2); darker lores to ear-coverts (ns 1); tail black with strong buff edges vs black (2). Race peruvianus, known only from type specimen, may merit specific status. Two subspecies normally recognized.
Unconfirmed record from Ecuador (Laguna Kingora, Sigsig).
Food and feeding
Status and conservation
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