No subspecies recognized.
Stercorarius longicaudus Vieillot. Long-tailed Jaeger. Accidental. One record: female (KU 32610), Cheyenne Bottoms, Barton County, June 23, 1955, William M. Lynn and Larry D. Mosby.
No subspecies recognized.
[Larus hyperboreus. Glaucous Gull. One bird with crippled leg seen at Lake Shawnee, Shawnee County, January 27, 1951, and several days thereafter, by many observers including the author. Placed on Hypothetical List until specimen is taken in Kansas.]
Larus argentatus. Herring Gull. Transient, regular along Missouri River, uncommon to rare elsewhere in state; probably rare winter resident.
Subspecies in Kansas: L. a. smithsonianus Coues.
Larus californicus Lawrence. California Gull. Accidental. One record: specimen (location unknown) taken by Goss, Arkansas River, Reno County, October 20, 1880.
No subspecies recognized.
Larus delawarensis Ord. Ring-billed Gull. Transient, locally common; rare winter resident.
No subspecies recognized.