- PALLAS'S GULL (Ichthyaetus ichthyaetus - adult). Aleutians West County, Alaska. 02 May 2019.
- 1ST ABA RECORD. Most distant record from core range, globally.
- Glaucous Gull (1st cycle). Monroe County, Indiana. 02 May 2019.
- Slaty-backed Gull (adult type). Valdez-Cordova County, Alaska. 02 May 2019.
- Black-legged Kittiwake (1st cycle). Halton County, Ontario. 03 May 2019.
- California Gull (2nd cycle). Cook County, Illinois. 04 May 2019.
- Black-tailed Gull (adult). Valdez-Cordova County, Alaska. 06 May 2019.
- Iceland Gull (adult & 1st cycle). Cook County, Illinois. 12 May 2019.
- Franklin's Gull (1st cycle). Rockingham County, New Hampshite. 14 May 2019.
- Great Black-backed Gull (adult). Central Okanagan District, British Columbia. 15 May 2019.
- 2nd Province Record.
- Glaucous Gull (1st cycle type). St. Bernard Parish County, Louisiana. 17 May 2019.
- Little Gull (1st cycle). Trumbull County, Ohio. 23 May 2019.
- California Gull (2nd cycle). Sheboygan County, Wisconsin. 26 May 2019.
- Franklin's Gull (adult). North Slope Borough, Alaska. 27 May 2019.
- Likely a first for Utqiagvik (Barrow).
- Laughing Gull (adult). Boulder County, Colorado. 29 May 2019.
- Black-tailed Gull (adult). San Mateo County, California. 30 May 2019.
- Franklin's Gull (sub-adult). Crawford County, Pennsylvania. 31 May 2019.
Notes:
- A remarkale adult Pallas's Gull was found and photographed on Shemya Island by Richard Fischer on 02 May 2019. A first for the ABA area, the sighting struggled to excite many as the island is inaccessible to the public. Fischer relocated the gull the following day and secured more photos. This brings the list of gull species recorded in the ABA area up to 30.
- During a shorebird survey on the Chandeleur Islands, Oscar Johnson & Matt Brady reported at least 30 putative Kelp x Herring hybrids, including nests. Johnson reports birds nearly as dark as Kelp were observed, and some slightly darker than Herrings with greenish legs and reduced p9-p10 mirrors.