- Little Gull (adult). Elkhart County, Indiana. 01 May 2020.
- Western Gull (3rd cycle type). Grand Prairie County, Alberta. 04 May 2020.
- An apparent 1st record for the province.
- Heermann's Gull (1st cycle). Duval County, Florida. 04 May 2020.
- Continuing from April 2020. Same individual roaming the FL coast since August 2019.
- Black-legged Kittiwake (adult). San Diego County, California. 06 May 2020.
- Glaucous Gull (1st cycle). Harrison County, Mississippi. 07 May 2020.
- California Gull (3rd cycle). Cuyahoga County, Ohio. 09 May 2020.
- Glaucous Gull (1st cycle). Galveston County, Texas. 10 May 2020.
- Slaty-backed Gull (adult). Kenai Peninsula County, Alaska. 11 May 2020.
- Likely the same individual from Anchor Point on 07 May 2020.
- Black-headed Gull (adult). Iqaluit, Nunavut. 16 May 2020.
- 2nd record for the territory. Wearing an unread silver band on right leg.
- Lesser Black-backed Gull (adult). Iqaluit, Nunavut. 16 May 2020.
- Seen at the same landfill in Baffin where the Black-headed above was found.
- Franklin's Gull (adult). La Vallee-de-l'Or County, Quebec. 17 May 2020.
- Glaucous Gull (1st cycle type). Walla Walla County, Washington. 17 May 2020.
- Little Gull (1st cycle). Edmonton County, Alberta. 18 May 2020.
- Great Black-backed Gull (1st cycle). Dubuque County, Iowa. 24 May 2020.
- Slaty-backed Gull (2nd cycle). San Francisco County, California. 27 May 2020.
- Laughing Gull (adult). St. John's County, Newfoundland. 27 May 2020.
01 June 2020
Monthly Notables May 2020
Sightings: