Chased by a crow. The crow is going full out and the eagle casually floats with sudden changes in direction to shake off a pest.
I once saw an eagle on the coast being harassed by a couple of seagulls. The eagle was climbing and suddenly twisted it's body and dropped to snatch one of the gulls out of the air. We're not supposed to attribute human emotions to the actions of animals, but that bird seemed to be saying stop f***ing with me.