My Buff Orpington was the same way - she was wonderful with all of the chicks, both the older ones and these. But boy, the Rhode Island Red chicks (11 weeks old) are total bullies! That's alright - all three of them have a one way ticket to freezer camp already....bought 3 Buff Brahma pullets, got 3 RIR roosters instead. Only me. <sigh>You are getting more peace than mine it seems. If I just had my Buff Orps to worry about all would be fine but my Production Reds have it out for the littles.