My flock is mostly young Barred Rock hens which have just started laying. My problem is that they waste a very large amount of food. As an example, Yesterday I filled their empty feeder. This morning it was half empty with several lbs of feed on the ground. This did not happen with my older hens, just as the young'uns got older it has gotten bad. They "free range" during the day in a 1 acre pasture so I'm sure they are getting plenty of food. I thought it might be rats scratching it out but I have waged war on rats for years and see no signs of them I'm to the point where I may only put the feeder in for a couple hours in the evening then take it away until tomorrow evening.