Sightings:
- Glaucous-winged Gull (3rd cycle). Cuyahoga County, Ohio. 01 January 2023.
- 1ST STATE RECORD.
- Common Gull (adult). Cuyahoga County, Ohio. 02 January 2023.
- Continuing 1st State Record from December 2022. Intermediate henei/kamtschatschensis.
- Slaty-backed Gull (adult). Cuyahoga County, Ohio. 05 January 2023.
- 3rd State Record. Apparently one of the adults from Muskegon, MI from November 2022.
- Heermann's Gull (4th cycle). Charleston County, South Carolina. 05 January 2023.
- Atlantic coast bird now in 4th alternate.
- Common Gull (adult). Essex County, Massachusetts. 07 January 2023.
- Returning adult banded as pullus in Iceland, June 2013 (10th cycle now).
- Slaty-backed Gull (adult). Clinton County, New York. 11 January 2023.
- 1st County Record.
- Glaucous-winged Gull (1st cycle). Pueblo County, Colorado. 12 January 2023.
- Vega Gull (adult). San Mateo County, California. 14 January 2023.
- Presumably a returning adult since at least 2021.
- Heermann's Gull (4th cycle). Volusia County, Florida. 14 January 2023.
- Atlantic coast bird now in 4th alternate.
- Franklin's Gull (1st cycle). Antigonish County, Nova Scotia. 16 January 2023.
- Common Gull (adult). Tolland County, Connecticut. 17 January 2023.
- 1st County Record. Nominate canus.
- Slaty-backed Gull (adult). Elkhart County, Indiana. 18 January 2023.
- Common Gull (adult). Bristol County, Rhode Island. 18 January 2023.
- 3rd State Record.
- Short-billed Gull (adult). New York County, New York. 19 January 2023.
- Continuing 1st county record bird from December 2022.
- Slaty-backed Gull (adult). Benton County, Washington. 20 January 2023.
- Returning adult.
- Slaty-backed Gull (adult). Oklahoma County, Oklahoma. 21 January 2023.
- 1ST STATE RECORD.
- Kamchatka Gull (adult). Fairfield County, Connecticut. 25 January 2023.
- Presumably a returning adult.
- Common Gull (adult). Essex County, Massachusetts. 28 January 2023.
- An unbanded individual observed independently of the 07 January bird.
- Heermann's Gull (2nd cycle). Baltimore County, Maryland. 29 January 2023.
- Continuing, 1st state record bird from March 2022.
- Short-billed Gull (adult). Fairfield County, Connecticut. 30 January 2023.
- Apparently the New York County bird, seen with "the" Kamchatka Gull.
Notes:
- As of January 2023, Slaty-backed Gull is no longer a review species in California. Its removal from the review list also includes 1st cycles.