Butterfly Walk on July 4 above Boulder
Each year Janet Chu and her friends and relatives lead a butterfly census, sort of like an Audubon bird count. Janet Chu and Steve Jones wrote BUTTERFLIES OF THE COLORADO FRONT RANGE: A Photographic Guide to 80 Species, by Janet R. Chu and Stephen R. Jones. The guide covers the common species seen along the Colorado Front Range, their description, habitat, transformation and adaptations. Here is a collection of photos and discussions about front range butterflies.