Recently discovered species, described in 1974 in Argentina. Endemic to south-eastern Patagonia.
Resident to uplands of western Santa Cruz, in diverse very windy pre-Andean plateaus of eastern Argentinian Patagonia.
Alone or in pairs. Occasional, scarcely recorded in Magallanes province, Chile. Nests colonially, sometimes seen in mixed flocks with several Silvery Grebe. This species breeds on a few basaltic lakes in the interior of Santa Cruz, extreme south-west Argentina. Excellent diver, curious.
Critically Endangered (CR), This species has a very small and extremely rapidly declining population within a very small range.
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