What's wrong with that?
I knew someone who lived above a busy road. He would look out of the window. When he saw a rabbit or a bird run over, he would jump into his car, drive down as fast as possible and pick it up and put it in the deep freeze.
The law is strange in the UK. If you actually run over a wild bird, it is prohibited to pick it up. That is deemed to be trespass. However if you are in the car following the car which hit it, then you are quite within your rights to take it.
The van driver I was following, knew this as he parked his van in the middle of the road and collected a nice juicy pheasant.
Waste not want not.