I'm wondering about how well ducks and cats co-exist. I have 1 cat, she's about 3. I've let her in the same room with the ducklings but never more than an arms length away from me. She's an indoor cat and not at all aggressive. She will catch mice but only to bat around and play with. When we let the ducks out to roam around the house with us I've been locking the cat on the porch. I'm wondering if it will ever be safe to allow the cat to stay in the house when the ducks are out - only when we're home of course - or if she'll always be a threat. I was hoping that once they got bigger she wouldn't view them as "playthings" anymore.