As a side-note, when I put my chicks out in the brooder pen, I hang the adults’ feeder and the chicks’ feeder next to each other with just the wire of the brooder between them. I do the same with the waterer. That way they learn to eat and drink peacefully together, so when the chicks begin integration at around 2 weeks old the adults are not bullying them away from resources.
Someone advised me to feed them on the fenceline for my first integration last spring and it's worked wonderfully well for every batch.
Additionally, the adults teach the babies how to use the horizontal nipple waterers.