I'm feeding my chickens layer crumble in a bucket type feeder with a small plate at the bottom. I've hung it chicken back height so there's little waste. But the food won't drop down into the little plate. It gets stuck. Unless I go in every day and push it down into the tray, they would not be able to get at the food after they eat what's in the tray. I'm concerned that I should do this multiple times each day. I'm not filling the bucket because I worried about the food getting stale. Could that be the issue? What am I doing wrong?