Is there any way to keep stray cats away yet still letting my cat come in the yard? My cat stays outside because I am way to allergic to let him in the house. There are four stray cats that I have seen in the neighborhood and I just caught two of them eating out of my cats food bowl. I’m thinking maybe trap them and release them outside of town or take them to the shelter but the city had a trap behind my house for awhile and I don’t think they ever caught any cats. Any suggestions?