Hi Joyce. I am pretty sure she is. The boys (my sister's male cats) hang around my yard all the time. The kittens are almost weaned. They have been eating real food for about two weeks. Smoky is going to have her kitty hysterectomy soon.
She does not mind at all when I touch her while she has the toy in her mouth. Don't know if it has cat nip though. She sometimes takes it to the babies. The kids don't really know what to make of it though. Will ask the Vet when we get there.
Thanks, Anne