I wouldn't waste the feed you have and would blend it 50/50 with the all flock until it's gone. I think you'll start seeing improvements in them once they're onto it.Do I need to switch the layer crumbles for all flock or add it into the feed routine? We did put a trail cam in/around the coop to try and see for sure if it’s a predator or the hens. Now that I know how much room they need I can say I probably didn’t have enough space for them but then that brings another question. When we first got chickens 10 yrs ago we got 5 guinea and 20 chickens. Again we did not know how much space they needed, but we had those birds in a slightly smaller space and we never had this problem. Did I just get lucky with that first round of birds? We do currently have plans to double the run space so I guess we’ll try to add onto the coop or build another one