The Green Hairstreak Corridor and The Hidden Garden Steps

The idea of the Green Hairstreak Corridor came to Liam O'Brien while surveying all of the butterflies of San Francisco County in 2007. It seemed to him there was something we could do for this creature. Five years into it, the project  now attracts not only the attention of the surrounding Upper Sunset neighborhood, but national conservationists and others seeking innovative ways to address the problems of vanishing urban ecosystems.

Speaker: Liam O'Brien