Charadriiformes
Laridés
Larus
schistisagus
Slaty-backed Gull (Larus schistisagus) is a species of bird in the Laridae family.
Rocky areas (eg. inland cliffs, mountain peaks) : ; Marine Neritic : Pelagic, Subtidal Rock and Rocky Reefs, Subtidal Loose Rock/pebble/gravel, Subtidal Sandy, Subtidal Sandy-Mud, Macroalgal/Kelp, Seagrass (Submerged) ; Marine Intertidal : Sandy Shoreline and/or Beaches, Sand Bars, Spits, Etc ; Marine Coastal/Supratidal : Sea Cliffs and Rocky Offshore Islands