Slaty-backed Gull ( Larus schistisagus) , Japan (IUCN red list) *** Local Caption *** wildlife,wild bird,wild animal,winter,larus schistisagus Stock Photo - Alamy
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Herring Gull Identification, All About Birds, Cornell Lab of Ornithology
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Your Awesome Neighbourhood Herring Gull (And Its Many Cousins) - Scientific American Blog Network
American herring gull - Facts, Diet, Habitat & Pictures on Animalia.bio
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Your Awesome Neighbourhood Herring Gull (And Its Many Cousins) - Scientific American Blog Network
Bird Guide | Environmental Data Center
Herring Gull Bird Facts | Larus Argentatus - The RSPB
American herring gull - Wikipedia
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Herring Gull | National Geographic
Observations of a novel predatory gull behavior on an invasive ascidian: A new consequence of coastal urban sprawl? - Holman - 2019 - Ecosphere - Wiley Online Library
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Have We All Missed the Point About Seagulls? — Save Coastal Wildlife
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