We have lost two ducks in less than a week due to a hawk. We are down to one lonely duck, who will no longer be roaming free. The kennel is well protected, but our yard not so much. I had promised my son he could get more ducks in the spring, but I don't want to keep ducks cooped up all day while we are gone if they will be unhappy. Both hawk attacks occurred while we were home, but inside the house. Advice?