Chilean pintail Chilean pintail The Chilean pintail ("Anas georgica spinicauda"), also known as the golden peck duck or brown pintail, is a subspecies of the yellow-billed pintail ("Anas georgica"), a duck in the dabbling duck subfamily Anatinae. Its local names are "pato jergón grande", "pato maicero" and "pato piquidorado" in Spanish, and "marreca-parda" or "marreca-danada" in Portuguese. The Chilean pintail is one of three subspecies of the yellow-billed pintail, and by far the most numerous and widespread. It is found throughout much of South America from extreme southern Colombia southwards to Tierra del Fuego, as well as in the Falkland Islands. The
Chiloé Archipelago include many birds, some of which are endemic to the archipelago. Among land mammals the largest are Darwin's fox (named as such because Charles Darwin was the first to collect a specimen, on Isla San Pedro, Chiloé) and the pudú, a small deer. Marine mammals include Commerson's dolphins and South American sea lions which form colonies at rock outcrops close to the sea. Several species of whale have been sighted around the island, notably blue whales (see also Alfaguara project) and critically endangered southern right whales. The Chiloé Archipelago may have been populated as early as 12,000 to 11,800 BC