My five hens are fed Mule City Layer feed in a hanging feeder. It has sunflower seeds but not many. These seeds are their favorite thing so they scatter the feed with their beaks looking for the seeds. As a result, the entire floor of the run is basically uneaten feed. What can I do? Are crumbles better? During the day their door is open so they go back and forth between the run and a 25x25 foot fenced area. For a couple of hours in the late afternoon and evening they free range on our two acre property of lawn and woods. They get table scraps a few times a week and yogurt and time or two. What is the beat method of feeding that won’t waste feed and attract mice?