Opinions wanted on mixing hens and young chicks

[Oneacre Homestead]

Hi, I've got a broody RIR and I'm going to put some day olds with her on Monday. I have a Cochin bantam with six four weeks olds, too. My chickens all get along, so far.
Do y'all think I can put the RiR in with the Cochin and the little ones?
I am running out of runs. I could make yet another one, but it will take some doing or be pretty small. Thanks!!!

 

[Kevin565]

It could work but be prepared for the possibility of raising the chicks on your own if she rejects them