Hello - I have been keeping pet chickens for 5 years without any behaviour issues (until now....) I have 7 chickens, one, i've had as a chick (she's 5), 4 are ex battery hens (approx 2 years old) and 2 that I have recently taken in from a friend who could no longer look after them (3 years old). My latest additions settled in well, pecking order established without bloodshed. However, one of the new ones has taken to attacking humans. She fluffs herself up and just goes for you. You can push her away, and she'll just turn round and square up to you again, pecking at your legs and feet. I am at a loss as what to do - never experienced this before. Any helpful advice would be most appreciated x