French: Goéland de Cortez German: Gelbfußmöwe Spanish: Gaviota de Cortés
Larus occidentalis livens
San José Island, Baja California, Mexico
Gulf of California, in NW Mexico; some post-breeding dispersal N to SW USA (Salton Sea, rarely to Californian coast#R) and S to W Mexico (Sinaloa, rarely to Guerrero and Oaxaca#R).
60–67 cm; 1110–1400 g; wingspan 142–155 cm. A three-year gull, despite its large size. Has a long neck, long legs and a distinctive chunky, broad-based bill... read more
Calls are deeper, slower and more nasal than those of the Western Gull, a hoarse "gruff-gruff", "... read more
Breeds on sandy and rocky islands, usually with little or no vegetation. Forages on shorelines and... read more
Food and feeding
Consumes fish, invertebrates, carcasses of marine mammals, and offal; takes small seabirds (petrels), pelican eggs, crabs, fish and... read more
Little detailed information is available. Egg-laying is in early April, the earliest nests having eggs in late March. Most nest in ... read more
Movements are relatively short range, almost entirely confined to the Gulf of California. There is... read more
Status and conservation
Not globally threatened (Least Concern). The global population of this little studied species is not definitely known but has recently been estimated at 20,000 pairs or 60,... read more
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