That depends on a few different things. The most important to me is how much space you have for Mama to work. I am a proponent of letting Mama and the chicks join the flock as soon as Mama wants to take them off the nest, but we all have different conditions and set-ups so there is no one right answer for everyone. You might find this thread of interest. Raise with flock? thread https://www.backyardchickens.com/forum/viewtopic.php?id=215937&p=1 Good luck!
