We have a mixed bunch in the brooder right now, Buffs, Silkies, and EE's from Ideal. We've got mostly everyone getting along, but some of the EE's are making remarkably credible attempts to jump to the top of the feeder/waterer reservoirs. They stand next to it, little heads angled side to side, then leap at it, wings flapping. My hubby swears he's going to come home one day and find a bunch of little hawk-like chickens roosting on his motorcycle gear. That may not go well! So, how old were your EE's when they started flying out of or to the edges of their approved territory?