French: Mouette des Andes German: Andenmöwe Spanish: Gaviota andina
Jauja Valley, Junín, Peru
Andean lakes from N Ecuador, W Bolivia and NW Argentina (Tucumán) to C Chile (Ñuble, rarely to Aisén). Individuals and small flocks also reported from SW Colombia at Laguna La Cocha#R. In winter extends to Pacific coast, mainly from C Peru to N Chile.
44–48 cm; 478 g. Two-year gull. Breeding adult has glossy black hood, with white rear eye-crescents; neck white; back and upperwing grey; unique wing pattern, with... read more
Gives agitated, sometimes tremulous “yeeer” calls. Also a hoarse “raggh-aggh-keeaagh” and other low... read more
During the breeding season frequents lakes, bogs with small ponds, marshes and fields; breeds on... read more
Food and feeding
Breeders feed along rivers and on grasslands. Diet includes earthworms, insects, amphibians and small fish, and sometimes eggs and chicks... read more
Nests mainly Jul–Aug, but variable, depending on climate. Breeding biology largely unknown. Usually in small colonies, which are... read more
Many birds remain on altiplano lakes and marshes throughout year, but most descend to congregate at... read more
Status and conservation
Not globally threatened (Least Concern). Total population unknown but estimated at 150,000 individuals. The species is probably vulnerable, with no large populations.... read more
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