When I took this image there was a constant, stormy wind and the seagulls, despite of their efforts, weren't moving at all, just staying at a single point in space in the air.
I couldn't tell if the guy, holding up the chunk of chips was teasing them, because the birds never really took their chance; probably because of the mentioned wind.
The scene itself was still hilarious.
(Oh, by the way: this entry was written by Peter Molnar, and originally posted on petermolnar dot net.)