I added some just arrived at the feedstore (3 days old?) Welsummer chicks to my brooder with 4 - 3 Week olds (2 Barred Rocks, 2 Black Aussies) today. I sat and watched them for 3 hours, and except for some explorative pecks and a coupla reminders that the babies shouldn't be trying to actually 'hang out' with the teenagers, everything seemed to go well. Actually they each seemed to take their own corner of the brooder, but since the chicks picked the corner with the feeder (they ate for an hour and fifteen minutes, NONSTOP, I swear I timed it), they had lots of mixing time and shared the feeder well. I had been using a heat lamp, but just got an EcoGlow, so decided to make the switch on that today. I had it on its lowest setting for the babies, but my juveniles (when they decided to bed down) were laying around the edges, so I raised one end so they could get under it if they wanted. Gonna go out in a while and see how that's working. Since they are all bedded down now, and since I watched them for so long this afternoon, am I probably OK on aggressiveness, or is it likely they will start fussing in the dark. The only experience I have is that I went in one night awhile ago and picked one up in the dark, and none of the others even seemed to notice I was messing with them. Are they 'Dead to the World' after dark? I assume I should be out in the coop early tomorrow AM in case someone wakes up a little cranky?