Our old flock consisted of one three year old hen, two two year old hens, and four pullets. We picked up five new thirteen-sixteen month old hens that have been SPOILED rotten by their previous owner.They are gorgeous birds. So we did the night time flock integration method. No issues over night. This morning however the battles have begun. At first it was our oldest(white leghorn) hen was challenging the senior new hen. After this our second oldest hen started in on the new hen. She drew a little blood so we seperated them into the side yard. Is this normal behavior for hens? I know that the establishing order is normal, but what about blood shed? When should i expect the fighting to settle down? Have hens ever killed one another? I want the transition to be as low stress as possible for the new ladies.