Butterflies of the San Francisco Bay Region

Butterflies of the San Francisco Bay Region by J.W. Tilden is an essential guide for nature enthusiasts and butterfly lovers, offering an in-depth look at the 122 butterfly species recorded in the Bay Area. This comprehensive book covers eight of the ten butterfly families found in North America, from the delicate Pygmy Blue, one of the smallest butterflies in the world, to the magnificent Two-tailed Swallowtail with its impressive wingspan. Whether you're a novice or an experienced butterf...