I have had 2 birds in my older flock die in the last 3 weeks. One had a large amount of nasal mucus and looked underweight and ragged as if feathers had dropped off (they had). Today another hen was found dead, though the last 2-3 weeks the birds have looked ok. My wife and cousin recently told me that the flock was not eating or laying much. I would not be surprised by this info as they were recently moved to another coop and it is expected that these behaviors decrease due to the stress of the move, except that they really never did stop eating or laying during the first 5-6 weeks in the new coop. I have had to teach my cousin, who is feeding my flocks (his "rent" as he lives on my property) how to feed and what to feed. He initially found scratch and BOSS to be their favorite rations (of course) and for a while fed them this exclusively. I had to educate him on proper chicken nutrition and now he mixes layer ration with the other. Better, but still the birds pick out the good stuff and leave the ration. Could the deaths be due to imbalance from the poor diet?