Green Darners are large dragonflies that will range far from water and even migrate.  Pictured above is a juvenile Green Darner that is close to adulthood. (the adult male will have a bluish tail section)  Even though our home is about half a mile from water, our prairie has many Green Darners.  We appreciate all our dragonflies because they help to control our insect pests.  ( the famous Minnesota mosquitos)