Bob has taught classes for Point Reyes Field Institute since it’s inception in 1976. He has been a working biologist and naturalist for over 50 years in various public schools, taught at the College of Marin, and served as Landbird Biologist and Director of Education at the Point Reyes Bird Observatory. For 15 years Bob worked for the County of Marin and is well known for the 2,000 plus outings he led for the general public on a variety of topics including bird behavior, butterflies, insects, mushrooms, grasses, flowering plants, habitats and general ecology. Since 1973, he has led birding and natural history tours to a variety of locations around California and the Southwest, and Central America. Look for his books Common Butterflies of California, and Butterflies of Arizona, A Photographic Study.