Sounds like normal behaviour to me. I would allow her to do her thing with the chick unless you can see the chick is getting hurt.We don’t have the money to buy a dog crate like that at the moment. We do have an old cage that we used for our Orpingtons back when they were chicks. Problem is I’m pretty sure it’s a wire cage and I heard of wire cages breaking hens out of their broody nature. There’s a metal cover we could put on the bottom but it’s real rusty and I don’t know if that would help anyway. On top of that my dad’s concerned that it may not be tall enough for the mom. Even if we do use it we’d need to clean it real good first since it’s been out in the elements for quite a while.View attachment 3197402
If you must seperate them ... That cage doesn't look big enough, you said your new coop will be ready, just needs a clean? So I assume it would be ready within a few hours at most? If not then I would use that cage there and the basket or a couple other things (if you don't have wire fencing spare) to use as a fence block to enclose them in a larger area. Do you know what I mean? So they can be separated but in a larger area.