BBS Route · California · BCR 32
Caruthers Bird Survey Route
A standard 50-stop Breeding Bird Survey route. 43 species recorded across 15 survey years, still active.
43Species Recorded
15Years Surveyed
1972–1987Span
5Observers
Bird Species Found on California Caruthers
Top 40 of 43 species by most recent count. Each links to its species trend.
| History | ||||||
|---|---|---|---|---|---|---|
| House Finch | Fringillidae | 174 | 1987 | -9% | 1974 | |
| Brewer's Blackbird | Icteridae | 129 | 1987 | -13% | 1974 | |
| House Sparrow | Passeridae | 78 | 1987 | +5% | 1974 | |
| Red-winged Blackbird | Icteridae | 73 | 1987 | -2% | 1974 | |
| Mourning Dove | Columbidae | 68 | 1987 | -13% | 1974 | |
| American Crow | Corvidae | 64 | 1987 | 20× | 1974 | |
| Horned Lark | Alaudidae | 41 | 1987 | -12% | 1974 | |
| Brown-headed Cowbird | Icteridae | 31 | 1987 | +186% | 1974 | |
| American Robin | Turdidae | 28 | 1987 | +46% | 1974 | |
| European Starling | Sturnidae | 23 | 1987 | -11% | 1974 | |
| Western Kingbird | Tyrannidae | 16 | 1987 | +41% | 1974 | |
| California Scrub-Jay | Corvidae | 11 | 1987 | +77% | 1975 | |
| Killdeer | Charadriidae | 10 | 1987 | -60% | 1974 | |
| Northern Mockingbird | Mimidae | 9 | 1987 | -39% | 1974 | |
| Northern Pintail | Anatidae | 9 | 1973 | n/a | n/a | |
| Ring-necked Pheasant | Phasianidae | 8 | 1987 | -80% | 1974 | |
| Western Meadowlark | Icteridae | 6 | 1987 | -84% | 1974 | |
| Barn Swallow | Hirundinidae | 6 | 1987 | +8% | 1976 | |
| Black-necked Stilt | Recurvirostridae | 5 | 1985 | -20% | 1974 | |
| Tricolored Blackbird | Icteridae | 4 | 1982 | -52% | 1977 | |
| Bullock's Oriole | Icteridae | 4 | 1987 | -14% | 1979 | |
| Burrowing Owl | Strigidae | 4 | 1986 | +150% | 1981 | |
| Lark Sparrow | Passerellidae | 4 | 1987 | +150% | 1984 | |
| Red-tailed Hawk | Accipitridae | 3 | 1987 | +67% | 1977 | |
| American Kestrel | Falconidae | 3 | 1987 | -21% | 1975 | |
| Cliff Swallow | Hirundinidae | 3 | 1987 | +26% | 1981 | |
| Loggerhead Shrike | Laniidae | 2 | 1987 | +50% | 1974 | |
| Long-billed Curlew | Scolopacidae | 2 | 1984 | n/a | n/a | |
| California Quail | Odontophoridae | 1 | 1987 | -90% | 1974 | |
| Rock Pigeon | Columbidae | 1 | 1987 | -66% | 1974 | |
| Northern Harrier | Accipitridae | 1 | 1987 | +50% | 1975 | |
| Great Blue Heron | Ardeidae | 1 | 1973 | n/a | n/a | |
| Song Sparrow | Passerellidae | 1 | 1982 | +0% | 1974 | |
| Mallard | Anatidae | 1 | 1985 | -75% | 1975 | |
| Cinnamon Teal | Anatidae | 1 | 1975 | n/a | n/a | |
| White-tailed Kite | Accipitridae | 1 | 1986 | +0% | 1975 | |
| Ash-throated Flycatcher | Tyrannidae | 1 | 1976 | n/a | n/a | |
| Northern Rough-winged Swallow | Hirundinidae | 1 | 1979 | -67% | 1976 | |
| American Goldfinch | Fringillidae | 1 | 1987 | -50% | 1981 | |
| Blue Grosbeak | Cardinalidae | 1 | 1982 | n/a | n/a |
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22. A route is a sample, not a census.