- Sabine's Gull (adult). San Francisco County, California. 02 April 2019.
- Glaucous Gull (1st cycle). Lafourche County, Alabama. 03 April 2019.
- Thayer's Gull (1st cycle). Volusia County, Florida. 04 April 2019.
- Great Black-backed Gull (adult). Logan County, Colorado. 06 April 2019.
- Black-headed Gull (adult). Anne Arundel County, Maryland. 06 April 2019.
- Glaucous Gull (1st cycle). Salt Lake County, Utah. 06 April 2019.
- Mew Gull (adult). Barnstable County, Massachusetts. 07 April 2019.
- Little Gull (1st cycle). Hall County, Georgia. 13 April 2019.
- Mew Gull (2nd cycle). Nebraska. Lancaster County, Nebraska. 12 April 2019.
- Glaucous-winged Gull (adult type). Kiowa County, Colorado. 13 April 2019.
- Common Gull (2nd cycle). St. John's County, Newfoundland. 17 April 2019.
- California Gull (adult). New Haven County, Connecticut. 18 April 2019.
- 2nd State Record.
- Ivory Gull (adult). Manicouagan County, Quebec. 19 April 2019.
- Little Gull (1st cycle). Lyon County, Kentucky. 20 April 2019.
- Laughing Gull (adult). Dane County, Wisconsin. 20 April 2019.
- Heermann's Gull (adult). Imperial County, California. 20 April 2019.
- Thayer's Gull (2nd cycle). Galveston County, Texas. 22 April 2019.
- California Gull (2 adults). Cook County, Illinois. 23 April 2019.
- Ivory Gull (6 adults). Nome County, Alaska. 24 April 2019.
- Lesser Black-backed Gull (2nd cycle). San Luis Obispo County, California 30 April 2019.
01 May 2019
Monthly Notables April 2019
Sightings: