A couple days ago there was one day of strong west wind as a wide storm front went through the midwest. I only had an hour that day at Tiscornia but 10 Franklin's gulls flew by in that time.
These 2 pics show 8 of the ten. They're farther out than the Franklin's this spring, but the ID features are still pretty easy to see, half hooded birds with relatively dark mantles with white between the gray of the upperwing and the black primary tips. The next day the winds turned around to the SE they've been stuck on and no more Franklins.