I have shot starlings at 10-15 yards with a Daisy 717 pistol (~400fps with RWS Hobby Wadcutters). If you hit them in the boilerroom, they go down. Sometimes they can set their wings and glide down, but they can't fly with 7gr of lead in their lungs. Usually take them off the TV antenna when they are casing the house for an attempted break-in.