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Range DescriptionThis species is known from colonies around the coasts of southern Chile and Argentina, Tierra de Fuego, and the Falklands Islands (Islas Malvinas). Colonies are numerous along the South American coast, but tend to be very small, rarely exceeding 200 pairs (del Hoyo et al. 1996). In Argentina, the total population has been estimated at c.700 pairs. On the Falklands, there are 3,000-6,000 pairs which are widely distributed in small colonies (Woods and Woods 1997).