Chile, Colombia, Costa Rica, Ecuador, Falkland Islands (Malvinas), Panama, Peru.
Unknown to South Georgia and the South Sandwich Islands.
Inland deserts (mainly Atacama) of northern Chile and probably southern Peru; feeding birds and non-breeders range along coast from Ecuador (Manta, virtually on equator) south to south-central Chile (Valdivia).
Grey Gull (Leucophaeus modestus) [XC47015]
by Guillermo Egli from Lagunas de Mejia, Arequipa, Peru (call)
Grey Gull (Leucophaeus modestus) [XC498351]
by Barry Edmonston from Playa Las Machas, Arica, Regi\u00f3n de Arica y Parinacota, Chile (call, collective calls)
Nest
A scrape in the sand, usually near rocks, on barren montane desert, 35 - 100 km inland.
Subspecies
Most closely related to Heermann's Gull (Larus heermanni).