I recently took in a stray and her newborns and now the kittens are about 4 weeks old. I am planning on adopting 2 of the kittens, but I don't know when I should introduce them to my Chihuahuas. I have 3 Chihuahuas that are on average about 10 yo. One is relatively grumpy but has low energy (diagnosed with arthritis). The other two are more barkers but have never attacked anyone or anything. The momma cat has seen one of my dogs through the crack of the door but my dog didn't see her. Momma cat was growling and hunched. I have a feeling we will not be able to make her get along with the dogs. But when is it ok to start introductions for the kittens? I want them to get along and don't want to wait too long to make the intros. I know I should be doing each dog at a time but at what age is it appropriate to introduce the kittens?