Aves > Charadriiformes > Laridae > Larinae > Larus > Larus smithsonianus
Compare AOU treatments of Larus smithsonianus, in Avibase (1886 to present).
Search for Larus smithsonianus at Cornell Birds of the World.
Annotation: Formerly considered conspecific with Larus argentatus, L. vegae, and L. mongolicus (Herring Gull).