Mine have been on 80% beans 10% barley and 10% gerry +. The only reason there's gerry in the mix is because it was left over from young bird racing.Once the final flights are about complete I'll be increasing the barley to about 90% the rest beans.They also get a small amount of trapping mix while I'm cleaning them out in the mornings,as much grit as required,cider vinegar most day garlic the other days or I might even put both in the water.