I have three game stags that have run of place. All summer they have demonstrated a capacity for being predators in their own right by catching and eating the following: insects (some known for being foul tasting), crayfish, small frogs, lizards, small snakes and fledgling indigo buntings. Small birds have been consumed more frequently over last couple days. They are juvenile warblers migrating through. The warblers appear to be dead when found by the chickens. I chased a stag with one of the birds to inspect his catch. It seemed physically OK other than dead.