P. P. King, 1827,
Port Famine, Straits of Magellan, Chile.
Thought to be closest to G. brasilianum, G. tucumanum and G. peruanum. Sometimes treated as a race of G. brasilianum, but apparently some subtle differences in vocalizations exist; recently shown to differ also in DNA. Monotypic.
Breeds S Chile and S Argentina S to Tierra del Fuego, some wintering farther N in Chile and Argentina. Recently documented year-round in S Argentine Patagonia#R.
Food and feeding
Status and conservation
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