BBS Route · California · BCR 32
Ono Bird Survey Route
A standard 50-stop Breeding Bird Survey route. 100 species recorded across 23 survey years, still active.
100Species Recorded
23Years Surveyed
1984–2012Span
3Observers
Bird Species Found on California Ono
Top 40 of 100 species by most recent count. Each links to its species trend.
| History | ||||||
|---|---|---|---|---|---|---|
| Cliff Swallow | Hirundinidae | 52 | 2012 | -61% | 1992 | |
| Acorn Woodpecker | Picidae | 44 | 2012 | -4% | 1992 | |
| Turkey Vulture | Cathartidae | 32 | 2012 | +27% | 1992 | |
| Canada Goose | Anatidae | 30 | 2011 | +213% | 2001 | |
| Western Meadowlark | Icteridae | 29 | 2012 | -33% | 1992 | |
| Mourning Dove | Columbidae | 26 | 2012 | -33% | 1992 | |
| California Quail | Odontophoridae | 25 | 2012 | -8% | 1992 | |
| Western Kingbird | Tyrannidae | 22 | 2011 | -43% | 1992 | |
| Red-winged Blackbird | Icteridae | 21 | 2012 | +80% | 1992 | |
| Spotted Towhee | Passerellidae | 21 | 2012 | +12% | 1992 | |
| Ash-throated Flycatcher | Tyrannidae | 19 | 2012 | -7% | 1992 | |
| European Starling | Sturnidae | 19 | 2012 | -38% | 1992 | |
| California Scrub-Jay | Corvidae | 18 | 2012 | -36% | 1992 | |
| Tree Swallow | Hirundinidae | 18 | 2012 | +54% | 1992 | |
| Eurasian Collared-Dove | Columbidae | 18 | 2012 | 12× | 2010 | |
| Black-headed Grosbeak | Cardinalidae | 15 | 2011 | +38% | 1992 | |
| Tricolored Blackbird | Icteridae | 14 | 2009 | +176% | 1994 | |
| Oak Titmouse | Paridae | 13 | 2012 | -24% | 1992 | |
| Bullock's Oriole | Icteridae | 12 | 2011 | -14% | 1992 | |
| Brewer's Blackbird | Icteridae | 12 | 2012 | -79% | 1992 | |
| Lesser Goldfinch | Fringillidae | 11 | 2012 | -44% | 1992 | |
| Lazuli Bunting | Cardinalidae | 10 | 2011 | +89% | 1993 | |
| Nuttall's Woodpecker | Picidae | 9 | 2012 | +85% | 1992 | |
| Lark Sparrow | Passerellidae | 9 | 2012 | +55% | 1992 | |
| Bushtit | Aegithalidae | 9 | 2012 | -24% | 1992 | |
| Violet-green Swallow | Hirundinidae | 9 | 2011 | +90% | 1993 | |
| Warbling Vireo | Vireonidae | 8 | 2011 | +175% | 1998 | |
| American Crow | Corvidae | 5 | 2012 | -21% | 1992 | |
| Great Horned Owl | Strigidae | 5 | 2009 | +60% | 1995 | |
| Common Raven | Corvidae | 5 | 2011 | +100% | 1998 | |
| Downy Woodpecker | Picidae | 4 | 2012 | -11% | 1994 | |
| Anna's Hummingbird | Trochilidae | 4 | 2012 | +71% | 1992 | |
| Black Phoebe | Tyrannidae | 4 | 2012 | -11% | 1992 | |
| Yellow-billed Magpie | Corvidae | 4 | 2012 | -50% | 1992 | |
| California Towhee | Passerellidae | 4 | 2012 | -26% | 1992 | |
| White-breasted Nuthatch | Sittidae | 4 | 2011 | -29% | 1992 | |
| Mallard | Anatidae | 4 | 2012 | +17% | 1993 | |
| Killdeer | Charadriidae | 3 | 2012 | -57% | 1992 | |
| Band-tailed Pigeon | Columbidae | 3 | 2012 | +43% | 1993 | |
| Northern House Wren | Troglodytidae | 3 | 2011 | -55% | 1993 |
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22. A route is a sample, not a census.