On closer inspection, I just now noticed that I managed to catch little explodey bits around the bread. Neat.
I wish I had the shutter timed a bit faster, though, as there was still too much light and so a bit of blurring, although I think the wing blur looks neat.
Seagulls are endless fun/hell. If you have a tame enough pack of them, you can get them to hover just above you in midair and they're good enough that they'll catch bread that you toss to them while they are in flight. Makes for good pictures.
And there is nothing quite like tearing a roll in half, lobbing it like a grenade into the middle of a crowd at the beach, and watching the maddness. That also makes for good photos.