ok i feed them duck feed bought from the feed store but they never seem to get full and are always eating. is there anything else i can safely give them to eat? i used to let them free range till they decided they wanted to fly around the yard (mallards, Cayuga, moscovy ducklings(2.5-3 months) and Cambell), i want to free range but cant and trimming wings is not an option since my kids show them in the fair and they do get marked for trimmed wings.

