Yes, everyone is curious with the new chicks and mama hen seems to be anxious, so it gives the new mama and chicks a chance to just get use to doing what they need to do. After a week mama has settled in to her routine and the chicks have grown some and learned what mama needs to teach them to...
We have been removing new mamas after chicks have hatched before integrating them back in the flock, it gives mama hen and chicks a chance to acclimate, mama to calm down from the stress of a new hatch and the chicks a week to grow and get their balance and use to what mama is teaching them...