Wavechickens
Chirping
Well the chicks did fine it was the ducks that the older chickens didn't like the problem is that the brooder is in the small bathroom and there is barely enough room for me and the 13 in there much less a second brooder but I have a plan the older ones will go into the coop in about 2 weeks sooner if it stays nice and warm ..... then I am going to take the younger ones outside into the fenced yard in their brooder where the other chickens can meet them but not get close enough to peck at them once a day for increasing amounts of time and then will let them out of the brooder for supervised play until I am comfortable that the younger ones won't be picked on too badly
Good plan

Slow but steady works best, it should work all out. Good luck. Keep us posted on your progress.