I have 2 mama cats. Ornery has 5 day old babies and Raggedy just gave birth last night. Raggedy's first kitten died and then she had 3 more. She keeps trying to take Ornery's kittens. She grabs them by the neck and tries to carry them away. Is this normal? I'm afraid she will hurt them, so I put her in a cage with her babies. What should I do?