My roos is great with the chicks... 2 of My 4 BGJ hens will scalp them if they try to eat by them.. the other hens are fine with them ..depends on the adult bird I guess
one of mine gets off the nest every 3 days, and if it wasn't for the poop and the food disturbed I would never know it... I just leave them alone, they have been raising young before people were keeping them..