Mark Alt, president of the MOU sent a link to some very cool photos of a peregrine falcon trying to steal a fish from an osprey. Interesting, you can see that the falcon is banded in some of the photos.
It reminded me of a story Bud Tordoff told me about a male peregrine falcon who was good at skimming right on top of the water and would bring back sora and pied-billed grebes. One day it brought up a fish. The young peregrines in the nest looked at it and played with it, but none of the young ate at it seriously.