Larus marinus Linnaeus, 1758
Great black-backed gull
Great black-backed gull
Larus marinus
photo by Fenwick, David

Family:  Laridae ()
Max. size:  79 cm TL (male/unsexed); max.weight: 1,488.0 g
Environment:  others; freshwater; marine
Distribution:  Indo-Pacific, Atlantic Ocean, Mediterranean and the Arctic: Belize, Newfoundland, Egypt and Russia. Tropical to polar.
Diagnosis:  Culmen: 6.48 cm; tarsus: 8.04 cm; wing: 48.1 cm.
Biology:  Total Length: 71 to 79 cm; Wingspan: 152 to 167 cm (Ref. 8812).
IUCN Red List Status: (LC); Date assessed: 07 August 2018 Ref. 123251)
Threat to humans: 
Country info:  This is a rare non-breeding species in Belize.

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