Rats can take out a quail, especially if it's asleep or just not feeling well.I appreciate you looking out. Where they are located there shouldn't be an issue with raccoons and my cat doesn't care about the birds. My dogs keep stray cats away. If I find it to be an issue I'll definitely add 1/2 x 1/2. The cage is 3 foot wide and deep and the other side is completely covered in wood. I'm more worried about a rat getting in than coons or cats. But I've never lost a bird to any of those things so far.![]()