Dyke Marsh Butterfly and Dragonfly Survey
Dyke Marsh Wildlife Preserve Alexandria, VA(VA) (Audubon Society of Northern VA) Butterfly and dragonfly surveys are carried out in temperate months (April-October), normally on Friday mornings, at one of four sites around Occoquan Bay, all within the 15-mile diameter circle established for the annual North American Butterfly Association's Annual Count. The results of these surveys are made available to the participants and other interested individuals ...