What CP said.
Any way you look at it going after a bird can cause bad PR. We just don't need it.
A flock of white pelicans floated by our field one fine spring day. Around 70 birds in a group, not well formed like gease, in a thermal as no wing flappig was observed. They just wheeled in and around each other drifting north. Very good looking black and white birds. One flyer started to head for them and was booed by the other flyers, he aborted pretty quickly.
It is great fun to fly with buzzards and hawks. It seems hawks, especially in nesting season, are a bit territorial. I have read here the best way to evade an agressive hawk is to do loops.
I think this works because it make us look silly and the hawks start to feel sorry for us.