Forget about it and leave them alone?........by the way, fair play to the old girl for giving them the mange treatment if that's what she is doing, mange is a f*****g terrible thing to see on some of those animals
As for shooting, to be honest I wouldn't be letting fly rifle rounds in a suburban back garden ( if that's what it it) open ticket or not......so, you will have to catch it, take it to your permission and then shoot it.
Is it really worth all that f*****g about ?.......I would personally get more pleasure just watching them