- Little Gull (1st cycle). Riverside County, California. 01 January 2020.
- Black-headed Gull (adult). Riverside County, California. 02 January 2020.
- Lesser Black-backed Gull (adult). San Diego County, California. 05 January 2020.
- Heermann's Gull (1st cycle). Palm Beach County, Florida. 06 January 2020.
- Continuing.
- Black-legged Kittiwake (adult). Osage County, Kansas. 06 January 2020.
- Slaty-backed Gull (adult). Benton County, Washington. 10 January 2020.
- Glaucous-winged Gull (adult). Salt Lake County, Utah. 11 January 2020.
- Mew Gull (1st cycle). Nueces County, Texas. 12 January 2020.
- California Gull (adult). Sarasota County, Florida. 12 January 2020.
- Little Gull (adult). Davidson County, Tennessee. 12 January 2020.
- Slaty-backed Gull (adult). San Mateo County, California. 14 January 2020.
- Little Gull (adult). Rankin County, Mississippi. 14 January 2020.
- Franklin's Gull (adult). Eddy County, New Mexico. 14 January 2020.
- Laughing Gull (1st cycle). Pictou County, Nova Scotia. 16 January 2020.
- Great Black-backed Gull (1st cycle). Boulder County, Colorado. 19 January 2020.
- Common Gull (adult). Bristol County, Massachusetts. 20 January 2020.
- 1st county record of this subspecies.
- Glaucous Gull (1st cycle). Escambia County, Florida. 20 January 2020.
- Kamchatka Gull (adult). Philadelphia County, Pennsylvania. 23 January 2020.
- Pending acceptance.
- Slaty-backed Gull (adult). Monterey County, California. 23 January 2020.
- Little Gull (2nd cycle). Caddo Parish, Louisiana. 24 January 2020.
- California Gull (subadult). Sangamon County, Illinois. 25 January 2020.
- Black-headed Gull (1st cycle). Lee County, Florida. 25 January 2020.
- Great Black-backed Gull (1st cycle). Larimer County, Colorado. 26 January 2020.
- Apparently the same individual from Boulder County.
- California Gull (1st cycle). Ketchikan Gateway County, Alaska. 26 January 2020.
- Franklin's Gull (1st cycle). Orange County, California. 29 January 2020.
- Ivory Gull (1st cycle). Lake County, Montana. 30 January 2020.
- FIRST STATE RECORD.
- Slaty-backed Gull (adult). Yolo County, California. 31 January 2020.
01 February 2020
Monthly Notables January 2020
Sightings: