Ok. I might just put it back under original mom then. She is mostly just roosting with her tiny chick under her. They have not gotten up much to walk around yet. Going to get the little water dish and chicken starter now. Should I be offering the mom special food in addition, she's been getting her layer crumbles and some seeds.
Mum doesn’t need layer crumble, seeing as she’s not laying. Both her and the baby would greatly benefit from chick feed. It’s much higher in protein, which is what they both need. Table scraps are also great (though some will disagree), let mum introduce the chick to new foods as she sees fit.
If my math isn’t terribly off, 4/22 egg is nearing “lockdown”. I wouldn’t move it around to much.
Unless you don’t want two separate broodies (and broody 2 isn’t already on a clutch of her own), I’d keep the current arrangement. The mum with the chick can go on to teach her baby about the world, and broody 2 can hatch hers in a few days