I have had chickens in my backyard for about 4 years. I started with 8 chicks from a local farmer. Out of those 8 I had just one rooster. He is my Hercules who is the only one left from the original flock. My flock has been reduced to 6 from 11 over the last 3 months, One succumbed to the heat I think but the other 4 were killed by predators. They are free range over about 1/2 an acre. In the beginning they were free range over my full yard but my back patio became such a mess that I finally had to reduce their ranging "scope" I give them Layena Crumbles and scratch grain as well as a mixture of table scraps, chopped tomato,grapes, spaghetti, the list goes on!! I am constantly wondering if they are getting enough to eat...They never finish the crumbles or the scratch grain...Right now I have 6 hens who were laying until the predator attacks..............Then they started in the molt and I have not been getting any eggs at all over the past 4 months. I really believe they have not been laying some other places, and I have placed hard boiled eggs in the nesting boxes to check for snakes. BUT that's where the eggs stayed. My crumbles pan still has crumbles after 3 days and most of my scratch grain is still on the ground!! What is a good feed routine and what feed should I use to provide them with quality nutrition?