Santa Catarina, Brazil.
Genetic data#R indicate that present species, S. dougallii, S. hirundo, S. paradisaea and S. vittata may form a monophyletic group that also includes Old World S. striata and S. sumatrana, with S. forsteri and S. trudeaui possibly also part of this group. Monotypic.
Coasts of SC Peru (Ica) and CE Brazil (Espírito Santo) S to Tierra del Fuego, including Falkland Is. In austral winter extends N to Ecuador and Bahia (CE Brazil).
Food and feeding
Status and conservation
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