Baikal Teal Ducks feed on seeds and grain for which the PECk-O-MATIC Automatic Duck Feeder can be used to combat the wastage of feed that can happen with traditional feeding methodsIf feeding corn, the inch or 1-inch regulator disc can be used. The 3/8-inch regulator disc from PECk-O-MATIC Automatic Duck Feeder can be used when crumble or milo constitute the feed.