That’s nice that you feel that way about your kitties. My property line, however, delineates space to be used as I choose. Teach your kitty to stay out of my yard, and I’m all for his/her rights.
It amazes me that otherwise sensible people can’t even understand that the use of MY yard is not at YOUR discretion.
How do you keep birds and other varmints off of ‘your yard’?
Did you know that birds bring over 60 diseases to your backyard?