These birds have been plentiful in recent years. The problem is they migrate south towards late Sept and October. They have hundreds in Audubon park and are big time whistlers. Very distinct in flight with the legs dragging way behind them. The first time I shot one was in Gueydan maybe 10 years ago. The first time they approached us our guide told us to shoot and we did not because we swore they were not ducks(very long neck and long legs. They are very good eating.