Building California’s first-ever statewide Breeding Bird Atlas.

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Forty-four states have completed Breeding Bird Atlases—globally recognized tools that guide conservation efforts and strengthen biodiversity.

California isn’t one of them. That’s about to change.

Black Oystercatchers. Photo: Michelle MacKenzie

Marsh Wren. Photo: Michelle MacKenzie

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California Scrub Jay. Photo: Michelle MacKenzie

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“Breeding Bird Atlases are large-scale efforts that tell us not just where birds are, but how birds actually use our landscapes. This initiative is critical to understanding the current status of birds in our state.”

— Morgan W. Tingley

(Professor, Dept of Ecology and Evolutionary Biology, UCLA)

Horned Lark. Photo: Alecia Smith