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 butterfly observer, this volume provides valuable insights into where to find these fascinating creatures, how to identify them, and how to study their habits and life cycles. Beautifully illustrated with 70 species shown in full color and additional black-and-white images, Butterflies of the San Francisco Bay Region also includes a handy checklist that doubles as an index for quick reference. The book encourages readers to explore and contribute to the field by observing and recording data, filling in gaps in the scientific knowledge of local butterfly species. This informative guide is perfect for anyone looking to deepen their understanding of the region's rich butterfly diversity while making their own meaningful discoveries.

This title was originally published in 1965.
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