Fuji Acros 100II with a two stop push in a Nikon F100 with a 50mm f1.4 AF-D.
I spent about half a roll trying to get this shot. It was facilitated in part by a stranger who thought it was a good idea to bring a bag of groceries, including a loaf of fresh bread, to the pier. They got swarmed, abandoned the groceries, and the birds were circling like this for some time. Being a foggy day with fast action close to the lens, even a two stop push to get to an EI of 400 was obviously nowhere near enough to get everything sharp here.