x's 2....Mom will take care of them, if she's a good mom! Just keep an eye on her to make sure she doesn't abandon them, crush them etc. All you need to do is make sure they've got food and water. She will keep them warm and show them the ropes.

I think it is sad for the hen when the chicks have to be taken..
I always give mine a place protected from the others for day or two.just to give the Mom a chance to teach her little ones to come when she calls ect.
Lots of folks just let them all together from the start........................Good Luck and have fun