I have two bantam cochins that have been running with a large group of standard chickens. They really need to go with the smaller chickens as they are just too much smaller than the big ones and are on the receiving end of some enthusiastic pecking order stuff. I am wondering if I should wait a couple more weeks for the tinies to catch up a little in size and then combine them all. I have 9 babies and two bigger 5 week olds. What do you think?