In northern and central California, the Northern Pygmy-Owl (Glaucidium gnoma) is widespread in both the Coast Ranges and Sierra Nevada. In southern California it occurs in the Transverse Ranges from Santa Barbara County (Lehman 1994) east through the San Gabriel and San Bernardino mountains. In the Peninsular Ranges of Riverside, Orange, and San Diego counties, however, evidence for the species is tenuous at best. Intensive study of San Diego County 1997–2002, toward a bird atlas for that area, failed to find the species and suggests that the few past reports were in error.