Butterflies of the Bay Area and (Slightly) Beyond: An Illustrated Guide

Hardcover, 9.5 x 7, 352 pages | Pub Date: Oct. 28, 2025

ISBN: 9781597146852.

By Liam O'Brien

An illustrated obsession, a guidebook, a kaleidoscope of life on the wing.

Liam O’Brien has spent three decades chasing, learning about, protecting, occasionally catching, and always loving butterflies. Here, he shares his capacious knowledge of California butterflies through a treasure trove of stories and 700 gorgeous, hand-drawn illustrations—featuring both adult forms and caterpillars—of the 135 species that live in the greater Bay Area. This sumptuous book also shares practical tips for finding and identifying all the butterflies who call the Bay Area home. Learn which plants nurture Silver-spotted Skippers, which trail to hike to see Swallowtails flitting creek-side, and why so many butterflies cluster on hilltops. Share in the joy that O’Brien brings to the study of butterflies, and join the community scientists contributing to our understanding of Monarchs, Metalmarks, and Marbles—and what they need to survive and thrive in our busy Bay Area.

Categories Art and Photography | Forthcoming | Nature

About the Author

Liam O'Brien

Liam O’Brien is a self-taught lepidopterist and illustrator. He used to be a professional actor, having appeared in Les Misérables on Broadway, but shifted his powers of observation towards nature several decades back. He’s fascinated not only by butterflies but also by our relationships to them. He surveyed the county of San Francisco, where he lives, for which butterfly species remained in 2007 and 2009. He is the creator of the Green Hairstreak Project for the organization Nature in the City, and he led efforts to restore Variable Checkerspots to the Presidio. Since 2015 he has helped monitor the endangered Mission Blue butterfly in the Marin Headlands. O’Brien was the recipient of Bay Nature magazine’s Local Hero Award for Environmental Education in 2014. He lives in San Francisco.

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Butterflies of the Bay Area and (Slightly) Beyond: An Illustrated Guide

By Liam O'Brien

About the Author

Liam O'Brien

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