My lowest ranking hen has started attacking my top hen, pecking her head and doing cockerel fighting moves on her. My top hen runs away and is frightened. The rest of the pecking order remains unchanged everyone else treats the attacker as the lowest hen and respects the top hen as such. I am having to separate the offender at the moment but this can't go on indefinitely.
Any ideas as to why this is happening, I am at a loss.
Any ideas as to why this is happening, I am at a loss.