Order: CHARADRIIFORMES - Plovers, Sandpipers, and Allies
Family: LARIDAE - Gulls, Terns, and Skimmer
Thayer's Gull - Larus glaucoides ssp. thayeri (1st Winter)Thayer's Gull - Larus glaucoides ssp. thayeri (1st Winter)Thayer's Gull - Larus glaucoides ssp. thayeri (1st Winter)Thayer's Gull - Larus glaucoides ssp. thayeri (1st Winter)Thayer's Gull - Larus glaucoides ssp. thayeriThayer's Gull - Larus glaucoides ssp. thayeri