The Rufous-chested Dotterel is one of the most striking shorebirds of southern Patagonia, best known for its vivid breeding plumage. In the austral spring and summer it shows a bold white supercilium, grey face and throat, and a glowing rufous breast sharply bordered below by a dark band, with otherwise clean white underparts. Its brown upperparts and strong color contrasts give it an elegant and unmistakable appearance. Outside the breeding season it becomes much duller, shifting to pale brown and grey tones, though retaining its compact build and alert, terrestrial posture.
It is the only species in its genus and breeds exclusively in the southernmost regions of Patagonia. During the breeding season it is strongly territorial, defending space against both conspecifics and other shorebirds. In the nonbreeding season it becomes more social and may join mixed flocks, especially alongside Two-banded Plovers.
