French: Goéland siméon German: Schwanzbandmöwe Spanish: Gaviota simeón
Other common names: Band-tailed Gull
no locality (presumably Peru).
Formerly treated as including L. atlanticus as a subspecies. Monotypic.
45–54 cm; 560–725 g; wingspan 120 cm. Breeding adult white with blackish brown-washed mantle and upperwings and a broad black subterminal tail... read more
A clear short “yap” or “yeow”. The long call is an accelerating series of clear notes, “yaaaah... read more
Exclusively coastal. Frequents rocky shores and inshore guano islands.
Food and feeding
Fish, crabs and shellfish, carrion; seabird eggs and young important during breeding season. Feeds along beaches and around seabird... read more
Nesting in Peru begins in mid Nov and peaks in mid Dec. There are records of a nest with eggs in Jan and another with fledglings in Feb on... read more
Not studied. Most birds apparently remain close to breeding colonies, but some disperse N and S... read more
Status and conservation
Not globally threatened (Least Concern). Endemic to Humboldt Current region, with few known breeding sites. The total population is certainly fewer than 10,000 pairs, with... read more
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