Thanks so much Roo5. I think you are right - the hen he is picking on now he is big enough is the one who bullied him the most when he was young. I haven't got photo of run to hand but it's about 4 metres by 3 metres in an L shape although most of the time during day they are free ranging in...
Bit of a long winded one, hopefully someone has some advice based on experience. Have only ever had hens in the past and only for a year or so.
So, we had 2 hens - both around 2-3 years old (we think), and then got a hen with 2 week old chicks. The chicks are now 5 months old, and one is a...