Life (root) » Animalia (Animals) » Chordata (Chordates) » Vertebrata (Vertebrataes) » Aves (Birds) » Charadriiformes (shorebirds and allies) » Laridae (Gulls, Terns, and Skimmers) » Larinae (Gulls) » Larus (Large White-headed Gulls) » Larus glaucescens × occidentalis (Olympic Gull)