Sightings:
- Black-headed Gull (adult). Riverside County, California. 01 March 2020.
- Glaucous-winged Gull (adult). Larimer County, Colorado. 01 March 2020.
- California Gull (adult). St. Joseph County, Indiana. 01 March 2020.
- Little Gull (adult). Allegan County, Michigan. 02 March 2020.
- Great Black-backed Gull (1st cycle). Lancaster County, Nebraska. 06 March 2020.
- Slaty-backed Gull (adult). Comox-Strathcona District, British Columbia. 07 March 2020.
- Little Gull (adult). Davidson County, Tennessee. 08 March 2020.
- Mew Gull (adult). Clay County, Missouri. 11 March 2020.
- 2nd State Record.
- Kumlien's Gull (1st cycle). Harrison County, Mississippi. 11 March 2020.
- Laughing Gull (adult). St. Charles County, Missouri. 11 March 2020.
- Slaty-backed Gull (adult). Sitka County, Alaska. 12 March 2020.
- California Gull (adult). Scott County, Minnesota. 15 March 2020.
- 1st County Record.
- Sabine's Gull (adult). San Diego County, California. 18 March 2020.
- Great Black-backed Gull (2nd cycle). Lancaster County, Nebraska. 19 March 2020.
- Heermann's Gull (1st cycle). Nassau County, Florida. 19 March 2020.
- Same individual spotted along the eastern Florida coast all winter.
- Sabine's Gull (adult). San Bernadino County, California. 21 March 2020.
- Little Gull (adult). Galveston County, Texas. 21 March 2020.
- California Gull (adult). Dakota County, Minnesota. 23 March 2020.
- Slaty-backed Gull (2nd cycle). Monterey County, California. 27 March 2020.
- Heermann's Gull (1st cycle). St. John's County, Florida. 27 March 2020.
- Same individual spotted along the eastern Florida coast all winter.
- Franklin's Gull (adult). Wayne County, Ohio. 28 March 2020.
- Kamchatka Gull (adult). Nantucket County, Massachusetts. 28 March 2020.
Notes:
1) On 19 March 2020, Priscilla Footlik reported "the" 1st cycle Heermann's Gull that has been wintering on the eastern Florida coast at Fernandina Beach in Nassau County. This is the northernmost sighting of this individual, just a rock's throw from the Georgia border.