Gull Gulls, or seagulls, are seabirds in the subfamily Larinae, closely related to terns and skimmers, and more distantly related to auks and waders. Related Articles: Razorbill Species Guide: Appearance, Diet, Habitat, Behavior, Stats, And Conservation StatusAtlantic Puffin Species Guide: Appearance, Diet, Habitat, Behavior, Stats, And Conservation StatusPeregrine Falcon Species Guide: Appearance, Diet, Habitat, Behavior, Stats, And Conservation StatusOsprey Species Guide: Appearance, Diet, Habitat, Behavior, Stats, And Conservation StatusGlossary: OspreyGlossary: Atlantic Puffin (Fratercula arctica)Glossary: SkuaGlossary: Great Black-Backed Gull (Larus marinus)Glossary: Hooded Crow (Corvus cornix)