I have a five month old RSL pullet, Ariel, that was part of a trio, her clutch mates got really mean and we had to get rid of them via rehoming, so she was lonely(at least that was what we said to ourselves). We got "her" 2 more chicks. At first she wanted nothing to do with them, but tonight I heard this huge racket in their run/coop. I had blocked off the nesting box so she would not sleep in it, but she had pulled down the metal panel I had put in there. So off I go to fix it and move the three girls onto their roost. Before I can leave the run, the chicks are peeping and squealing and trying to get under her on the roost. What does she do? Squats on them! She has never laid an egg, was rasied by humans, and has only since yesterday really taken to these chicks... I just shook my head and walked away. I mean, come on, keep them warm, but on the ROOST? Makes me wish I could let her raise her own peepers.....What a good adopted mother.