Multiple feeders is a great idea. As my ladies are maturing, some - pushy broads - do have first right to the feeder and stretch out their wings preventing the 'well mannered' from first dibs, even if it does accommodate them all. Love the obstacle course!
I have ten hens 3 months old - and have about ten more coming in April. Thought I would take the two silkies and 2 polish i have now - bottom of pecking order - and create a new coop with the new bantams. i would keep the larger birds together - old and new. Plenty of room in coop for larger...