Paraguay and near Río de la Plata.
Closely related to C. cyaneus and C. hudsonius, and formerly considered conspecific. Falkland Is population, probably extinct, proposed as race histrionicus, but of doubtful validity. Monotypic.
From Andes of Colombia and Ecuador (above tree-line) S through Peru (including coastal region) and Bolivia to Tierra del Fuego; non-breeding visitor in Paraguay, NE Argentina and Uruguay; now probably only vagrant in Falkand Is.
Food and feeding
Status and conservation
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