Coastal sage scrub habitat is particularly in high demand for development, as it tends to occur in low-lying areas close to the ocean. Coastal California Gnatcatcher Polioptila californica californica Status Threatened Listed March 30, 1993 Family Muscicapidae Description Small, long-tailed bird dark blue-gray above and grayish-white below. It has dark blue-gray feathers on its back and grayish-white feathers on its underside. Listing Status Summary Table .....ii List Content .....iii Abbreviations .....iv Additional Resources .....iv. Unlock thousands of full-length species accounts and hundreds of bird family overviews when you subscribe to Birds of the World. Keeley, 149–169. To determine the status of the California gnatcatcher and the cactus wren at the proposed site focused presence/absence surveys were conducted. A tiny gray bird with a tiny range, the California Gnatcatcher flits through coastal sage scrub and desert scrub from southern California to southern Baja California, Mexico. At the current time, there is no immediate concern regarding possible population decline of the California Gnatcatcher. As an effort to provide a baseline for future studies, in this paper I estimate the maximum population of P.c. Critical habitat has recently been proposed for this species, however none has been designated to date. So why are we such fans of these birds? CONSERVATION STATUS. Determining occupancy of California Gnatcatchers at a regional scale allows us to track the status of the species throughout its entire southern California range and link population trends to environmental and anthropogenic factors. Atwood, J.L. Status Review of the California Gnatcatcher (Polioptila californica). Subsequent reviews of coastal California gnatcatcher status by Garrett and Dunn (1981) and Unitt (1984) paralleled the findings of Atwood (1980). Listing Status. Status and Distribution: The California gnatcatcher (CAGN) was listed as an threatened species by the USFWS on March 30, 1993 (USFWS,1993). The population of this bird is thought to be around 77,000 individual birds. You must be logged in to view your sighting details. This species was recently split from the similar black-tailed gnatcatcher of the Sonoran and Chihuahuan deserts. The California Gnatcatcher was designated as Threatened under the Endangered Species Act in 1993, after an extensive review by federal agencies determined that the rapid loss of coastal sage scrub habitat made the bird worthy of protected status. This petite bird flicks its long, narrow black tail as it hops through the dry waist-high scrub. The California gnatcatcher (Polioptila californica) is a small 10.8 cm (4.3 in) long insectivorous bird which frequents dense coastal sage scrub growth. Each species account is written by leading ornithologists and provides detailed information on bird distribution, migration, habitat, diet, sounds, behavior, breeding, current population status, and conservation. “California Gnatcatchers and Coastal Sage Scrub: The Biological Basis for Endangered Species Listing.” In Interface between Ecology and Land Development in California, ed. Federally Threatened (USFWS) CA State Species of Special Concern (CDFW) VOCALIZATIONS. Manomet, Massachusetts: Manomet Bird Observatory. The California Gnatcatcher (Polioptila californica) has become a flagship species in the dispute over development of southern California's unique coastal sage scrub habitat, a fragile, geographically restricted ecosystem with high endemism. All potentially suitable gnatcatcher habitat in the project vicinity was surveyed three times. Box 434844, San Diego, California 92143 AMADEO M. REA, San Diego Natural History Museum, P.O. North of Oregon, this species is an accidental vagrant. A recent scientific paper by Robert Zink, George Barrowclough, Jonathan Atwood, and Rachelle Blackwell-Rago presents results of genetic research on the California gnatcatcher and calls into question the status of the coastal California gnatcatcher as a subspecies. These differences highlight that the California gnatcatcher is not an appropriate monitoring surrogate for other, more fragmentation-sensitive species. Thus, its listing has been contested by groups advocating more development. This bird species has a range that is fairly small, only about 130,000 square kilometers. 2012). federal and California endangered species status was recently proposed for the California Gnatcatcher's northern subspecies. The Coastal California Gnatcatcher (CAGN) is a resident bird that is native to Southwestern California and Baja California in coastal sage scrub habitat. coastal California gnatcatcher status by Garrett and Dunn (1981) and Unitt (1984) paralleled the findings ofAtwood (1980). Hard to distinguish from the blue-gray gnatcatcher ( P. caerulea ) from the front. Gnatcatchers Distribution: The California Gnatcatchers, Polioptila californica, are non-migratory residents with a limited range, extending north from Mexico's Baja California to coastal southern California, where they remain year-round depending on a variety of scrub habitats.This species was recently split from the similar Black-tailed Gnatcatcher of the Sonoran and Chihuahuan deserts. HISTORY AND STATUS OF THE CALIFORNIA GNATCATCHER IN SAN BERNARDINO COUNTY, CALIFORNIA LIAM H. DAVIS, California Department of Fish and Game, 4949 Viewridge Avenue, San Diego, California 92123 ROBERT L. McKERNAN, San Bernardino County Museum, 2024 Orange Tree Lane, Redlands, California 92347 JAMES S. BURNS (deceased), U.S. Ofthese, 24 to 30 pairs occur in Los Angeles County, 224 to 294 pairs in Orange County, 724 to 916 pairs in RiversideCounty, and … Status and Occurrence of Blue-gray Gnatcatcher (Polioptila ... from Southern California, Arizona, New Mexico, and Southern Texas into Mexico, Belize, Guatemala, Nicaragua and Costa Rica (Kershner et al. Because the coastal California Gnatcatcher lives on such valuable land, its “threatened” status creates economic conflicts. Compared to California gnatcatcher the cactus wren has a lower maximum observed dispersal distance (up to 10 km), and requires mature cactus stands for nesting, which are patchy within coastal sage scrub habitat. Postal 2732, Ensenada, Baja California or P.O. California status: Species of special concern. It has a distinctive call, a rising and falling, kitten-like mew. 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