Well here is a strange bit of video from the BBC:
1. Strange because the newscaster refers to the birds as seagulls (oh BBC, I expected so much more from you).
2. It's a story about gulls tearing pieces of flesh of the backs of live whales that surface the water.
On the one hand, you have to admire a creature's ability to be adaptable and find an ample food source, especially such a comparatively small aerial animal feeding off of such a large marine mammal. But on the other had, it's a scary testament of how imbalances occur at the expense of other creatures by human habits.