You're right, run towards or yelling at them are also harassment, which many people don't realize (I often see people, especially children, doing this to wildlife). Also, letting your dog (or cat) chase or attack hawks or any other migratory bird can also get you into trouble
But, walking up to a hawk and making it leave your chicken it was trying to kill would probably not be harassment. I know with me, just standing and looking at a hawk is enough to make them want to leave.
Edited by desertdarlene - 10/11/10 at 10:49am