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18.https   www inaturalist org photos 195386
L Pittman   cc-by-nc-4.0

Larus schistisagus (Slaty-backed Gull) is a species of bird in the family Laridae. It is found in the Indo-Malayan Realm and the Palearctic.

EOL has data for 16 attributes, including:

Known occurrences, collected specimens and observations of Slaty-backed Gull