I am turning 60 next month and have never encountered this.My chickens free range with my turkeys during the day.The first time I saw this I thought it was fluke that would disappear.A hawk is walking with my turkeys using them for cover and grabbing a chicken.This is now occurring about every three days.My flock is being destroyed.Mainly the newly hatched chics.My yard has much cover for the fowl but this is not working due to the turkeys being used for cover.Has anyone seen this and any suggestions would be appreciated.My German Shepard has tried to get it on several occasions without success.