Capital Area Butterfly Survey

Capital Area Butterfly Survey The North American Butterfly Association (NABA) has run the Butterfly Count Program in the United States, Canada, and Mexico since 1993. Each of the approximately 450 annual counts consist of a compilation of all butterflies observed at sites within a 15-mile diameter count circle in a one-day period. Reports published annually provide a tremendous amount of information about the geographical distribution and relative population sizes of the species counted. Comparisons of the results across years can be used to monitor changes in butterfly populations and study the effects of habitat loss, climate change and pesticides on North American butterflies. NH Audubon has coordinated the Capital Area Butterfly Survey as a part of the NABA butterfly monitoring efforts since 2021. To participate, join NH Audubon the last weekend in July for the annual Capital Area Butterfly Circle Count, where you will be assigned a team and