don't know what is good to feed them but what you can do is when all you plants die throw all of the vines and stuff in the coop and that will give them something to dig around in and will keep them happy
today when I got home form work I went to check on my chickens and one was lying dead in the middle of the coop with just its head and neck gone. The rest of the body was there. This chicken was in its brooding stage so it was sitting on the eggs. But when I went to get the eggs they were gone...