The man does a poor job. He is suppose to scare many crows away. But rather than do that they are all his friends. I feel sorry for the people who employ him.
The crows are scared of him... his E is literally crows flying away from him so fast they hit people cause they only care about getting away, His R is he jumps into a group of them suddenly and they freak out and act similar to someone whos been feared by his Q and just run in circles. Except theyre even more terrified and will rip and peck any anything they pass by.
I don't know if this is right but....eh, sounds close enough to be new canon