Dave Hanson is a retired educator living in Mission, TX. His combined love for both nature and photography has been a driving force in his life for almost all of his life. Dave has a Master's Degree in Audio-Visual Communications and has been an avid birder for over 55 years. In 2001 he became interested in butterflies and since then has taken nearly 15,000 digital photos of over 200 species in the Lower Rio Grande Valley. Dave is a member of NABA and also supports most of the other nature venues in the Valley through membership and volunteer work. His other interests include Ham Radio, R/C flying, and Astronomy.