Monotypic. 1cy bird. Almost the only gull species to be seen in Ags, and only very local. Laughing Gull (Leucophaeus atricilla) is also seen, but even more rarely.
1. cycle, 2cy. Typical bird with gray back and the brownish wing covert patch and the pink bill with black tip and the dark eye characteristic for the first year bird.
Corn on the beach. Doesn´t look like the greatest success. Difficult to digest.
Second calendar year. A typical bird with all pale gray mantle and the worn remiges and median coverts. Complete white under part is a good thing to notice when being confused by size and other features when going through photos.