BOOK REVIEWS: Atlas of Breeding Birds, Orange County, California

Abstract

California's fourth breeding atlas—and the first for southern California—this volume reports on data collected from 1985 to 1990, plus selected records through 1994. Dividing the county into 5 x 5-km squares yielded 61 full and 50 partial blocks, a respectable 79 percent of which Gallagher deems to have been covered to a "good" or "excellent" degree. Because the Santa Ana Mountains account for most of the area afforded "poor" to "marginal" coverage, I expect that exciting discoveries still lurk in this poorly known range.