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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 Namesort ascending Status Priority Counties IBA Criteria
Off Jasper Seamount, CA Identified Global
North San Diego Lagoons Recognized Global San Diego D4i, D4ii
North Richmond Wetlands Recognized State Contra Costa D4i, D4ii, D4v
North Mojave Dry Lakes Recognized State Kern, San Bernardino D1, D4ii
Napa Lakes Recognized State Napa, Solano, Yolo D1
Mount Hamilton Range (East Diablo Range) Recognized State Alameda, San Joaquin, Santa Clara, Stanislaus D1
Morro Bay Recognized State San Luis Obispo D1, D4i, D4ii, D4v
Mono Lake Basin Recognized State Mono D1, D4i, D4ii, D4v, D5
Mono Highlands Recognized Global Mono D4i
Mojave River Recognized State San Bernardino D1, D4i
Modoc Plateau Recognized State Modoc D1, D4i, D4ii
Modoc National Wildlife Refuge Recognized State Modoc D1, D4i, D4ii
Mission Bay - San Diego River Estuary Recognized Global San Diego D4ii
Merced Grasslands Recognized State Madera, Mariposa, Merced D1
Mendota Wildlife Area Recognized State Fresno, Madera D1, D4i, D4ii, D4v
Mendocino Coast Pelagic, CA Identified Global
Mendocino Coast Recognized State Mendocino D1
McCloud River - Upper Recognized State Siskiyou D4i
Lower Los Angeles River Recognized