They only stayed with her until 6 weeks. Remember the hen swaps over! But she stayed with her chick last year (the Buf Orp who takes over the mother role half way through) until it was 22 weeks!
My Buff Orpingtons hatching eggs failed, so I bought her 2 day old chicks! :) If you have been looking at the pics properly then you will notice that the Buff Orpington changes as the chicks get bigger. The chicks sister (obviously not blood, but she was the same hens chick from last year) took...