California has 1,728 long-tailed weasel records, and the busiest stretch is the coastal grassland on either side of the Golden Gate. Point Reyes National Seashore holds 72, the Phillip Burton Wilderness inside it shows 59, and Golden Gate National Recreation Area another 49. On those open coastal prairies, weasels hunt pocket gophers and voles in broad daylight, popping in and out of burrows a few yards from a trail. That’s a big reason Marin, San Mateo, and Sonoma rank near the top of the county list.
From San Diego to the Sierra
The records spread well beyond the Bay Area. San Diego County leads all 46 counties with 186 records, just ahead of Marin with 183, and the central coast from Santa Cruz to Santa Barbara adds steady numbers. Inland, Carrizo Plain National Monument, Sequoia, and Kings Canyon contribute records from valley grassland and mountain meadow, and Mono County carries the species over to the east side of the Sierra Nevada. Few predators this small cover so much of the state, from salt marsh to high country.
A May peak
Reports rise fast through spring, top out at 348 in May, stay high in June, and fall to 29 by December. Kits born in early spring are tagging along on their mothers’ hunts by late spring, which puts more weasels above ground. Green grass and long days put more people on trails too, and most of the state’s records are iNaturalist photos taken on those walks.
The long-tailed weasel is native to California, and NatureServe hasn’t assigned it a state rank.
Full species profile
