Exactly Mark. Leave the animals alone as they are doing what comes naturally.
Hmm.....penalize all living things other than humans because someone's god complex gets in the way? We started every known "pest" problem, why not just shoot to kill everyone who slips up whether it be accidental or on purpose? Probably be easier than hunting down every stray anyways!..........gimme a break
Just wanted to add, screen windows keep pets in and pests out