One of the older ones is pecking the younger ones in hen house and in run. The other 2 older ones seem to not mind the younger 2 eating and bring near them in the run. It's just the pecking one that's doing it regularly. The older 3 are keeping together and so are the younger 2 while in the run...
Hmm I have this too going on. I have about a 2-3 week age gap and my 3 older girls are ok with the younger 3 but they each group sleeps separately. Will they get on once they are all the same size usually?