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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 Status Prioritysort descending Counties IBA Criteria
Lake Mathews - Estelle Mountain Recognized State Riverside D1, D4i
Los Angeles Flood Control Basins Recognized State Los Angeles D1, D4i
Lower Los Angeles River Recognized State Los Angeles D4v
Central Orange County Preserves (Orange County Wilderness Parks) Recognized State Orange, Riverside D1, D4i
Pamo Valley Recognized State San Diego D1
Puente-Chino Hills Recognized State Los Angeles, Orange, Riverside, San Bernardino D1
Mojave River Recognized State San Bernardino D1, D4i
North Mojave Dry Lakes Recognized State Kern, San Bernardino D1, D4ii
Owens Lake Recognized State Inyo D1, D4i, D4ii, D4v
Owens River Recognized State Inyo, Mono D1, D4i, D4ii
Shoshone-Tecopa Area Recognized State Inyo D1
Sacramento-San Joaquin Delta Recognized State Contra Costa, Sacramento, San Joaquin, Solano, Yolo D1, D4i, D4ii, D4v
Sacramento River - Upper Recognized State Butte, Colusa, Glenn, Tehama D4i
Sacramento Valley Wetlands Recognized State Butte, Colusa, Glenn, Sutter, Yolo D1, D4i, D4ii, D4v
Salt Spring Valley Recognized State Calaveras D1, D4ii
San Joaquin River - Lower (NWR) Recognized State San Joaquin, Stanislaus D1, D4i, D4ii
Stone Lakes Area (NWR) Recognized State Sacramento, San Joaquin D4ii, D4v
Taft Hills Recognized State Kern, San Luis Obispo D4i
Adobe Valley Recognized State Mono D1
Bridgeport Valley Recognized State Mono D4ii