Mostly I photographed Franklin's gulls running through the clouds of brine flies with their open bills to catch as much flies as possible. In July, I spotted on the shoreline of the Great Salt Lake Red-necked Phalaropes, also feeding on flies to fuel up for their long migration.
This Phalarope was passively snatching flies from the air while standing and resting.
The clouds of brine flies can be so thick that they interfere with with cameras' autofocus, and it can sometimes be tricky to focus clearly on the birds behind the swarm of brine flies. Practice helps and so does patience.
Generally, life is good.