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California IBA Contact

Andrea Jones

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California IBAs by Type

IBA Priority Number Acres
Global 82 13,954,543
State 95 5,757,316
Total 177 19,711,859

California's Important Bird Areas Program, launched in 1996, surged forward in 2000. Beginning in 2001, dozens of California field ornithologists, representing a broad range of agencies and affiliations, were interviewed and questioned about sites significant to bird populations in the state. These interviews, in combination with collecting data from around the state, and review by a technical committee, led to 145 sites becoming designated as Important Bird Areas. In 2004, Audubon published the book "Important Bird Areas of California" by Daniel S. Cooper. This network of IBAs is the cornerstone of Audubon's conservation activities in California. Their identification is guiding conservation at the chapter, state, and national levels of Audubon, and serves to showcase noteworthy habitat to other interested groups and agencies. In 2006, Audubon California prioritized IBAs based on bird value, degree of threat, and availability of conservation opportunities, and works with local chapters to conserve these sites and to develop systems to monitor their bird life. 

Audubon California has partnered with Cornell Lab of Ornithology and Point Blue Conservation Science to develop California eBird (https://ebird.org/region/US-CA) to gather bird abundance and distribution data at IBA sites into an online database. To assist with local planning efforts, Audubon California has developed maps of all IBA sites in California with the assistance of California Polytechnic Institute. We used ArcGIS to map sites and conduct analyses on habitat types, protection status, size, and other factors of interest. Visit our website to learn more about our program: http://ca.audubon.org/!
Text for California IBAs excerpted from "Important Bird Areas of California". Citation: Cooper, D.S. 2004. Important Bird Areas of California. Audubon California. 286 pp. Available (online) at: http://iba.audubon.org/iba/stateIndex.do?state=US-CA . Retrieved (insert date). 
Site Name Statussort descending Priority Counties IBA Criteria
Fall River Valley Area Recognized State Lassen, Shasta D1, D4ii
Goose Lake, Modoc Co. Recognized State Modoc D1, D4ii, D4v
Honey Lake Valley Recognized State Lassen D1, D4i, D4ii, D4v
Klamath Basin - Clear Lake Recognized State Modoc, Siskiyou D1, D4i, D4ii, D4v
McCloud River - Upper Recognized State Siskiyou D4i
Modoc National Wildlife Refuge Recognized State Modoc D1, D4i, D4ii
Modoc Plateau Recognized State Modoc D1, D4i, D4ii
Shasta Valley Recognized State Siskiyou D1, D4ii
Surprise Valley Recognized State Lassen, Modoc D1, D4i, D4ii, D4v
Alameda Wildlife Refuge Recognized State Alameda, San Francisco D4i, D5
Ano Nuevo Area Recognized Global San Mateo, Santa Cruz D1
Benicia State Recreation Area Recognized State Solano D1, D4i, D4ii
Big Sur Recognized Global Monterey D1, D4i, D5
Bodega Harbor Recognized State Marin, Sonoma D4ii, D4v, D5
Bolinas Lagoon Recognized State Marin D4ii, D4v, D5
Upper Pajaro River (Bolsa de San Felipe) Recognized State San Benito, Santa Clara D1, D4i
Brooks Island Recognized State Contra Costa D5
Concord Marshes Recognized State Contra Costa D1, D4i, D4ii
Corte Madera Marshes Recognized State Marin