species: Larus thayeri (Thayer's Gull, GoƩland de Thayer)

NOTE: This is an invalidated taxon. It is a 'synonym' for 12881, which has superseded it.

Compare AOU treatments of Larus thayeri, in Avibase (1886 to present).

Search for Larus thayeri at Cornell Birds of North America.

Annotation: Merged into Larus glaucoides.