BBS Route · California · BCR 32
Angelus Oaks Bird Survey Route
A standard 50-stop Breeding Bird Survey route. 90 species recorded across 19 survey years, still active.
90Species Recorded
19Years Surveyed
1989–2017Span
3Observers
Bird Species Found on California Angelus Oaks
Top 40 of 90 species by most recent count. Each links to its species trend.
| History | ||||||
|---|---|---|---|---|---|---|
| Acorn Woodpecker | Picidae | 44 | 2017 | +51% | 1991 | |
| White-throated Swift | Apodidae | 26 | 2017 | +12% | 1993 | |
| Spotted Towhee | Passerellidae | 22 | 2017 | -5% | 1991 | |
| Mountain Chickadee | Paridae | 21 | 2017 | -12% | 1991 | |
| Cliff Swallow | Hirundinidae | 20 | 2014 | +378% | 2000 | |
| Steller's Jay | Corvidae | 19 | 2017 | -38% | 1991 | |
| Western Wood-Pewee | Tyrannidae | 15 | 2017 | -27% | 1991 | |
| White-breasted Nuthatch | Sittidae | 13 | 2017 | +367% | 1991 | |
| Costa's Hummingbird | Trochilidae | 13 | 2005 | +550% | 1993 | |
| Lesser Goldfinch | Fringillidae | 12 | 2017 | +0% | 1991 | |
| Western Tanager | Cardinalidae | 12 | 2017 | +0% | 1991 | |
| Black-headed Grosbeak | Cardinalidae | 9 | 2017 | -54% | 1991 | |
| Rufous-crowned Sparrow | Passerellidae | 9 | 2005 | +71% | 2000 | |
| Brewer's Blackbird | Icteridae | 8 | 2017 | -50% | 1991 | |
| Lawrence's Goldfinch | Fringillidae | 8 | 2005 | +56% | 2001 | |
| House Finch | Fringillidae | 7 | 2016 | -54% | 1991 | |
| Western Bluebird | Turdidae | 7 | 2017 | +26% | 1991 | |
| Band-tailed Pigeon | Columbidae | 6 | 2017 | +39% | 1991 | |
| Common Raven | Corvidae | 6 | 2017 | +0% | 1991 | |
| Purple Finch | Fringillidae | 6 | 2017 | +60% | 1993 | |
| Wrentit | Sylviidae | 6 | 2017 | -76% | 1991 | |
| American Robin | Turdidae | 6 | 2017 | -64% | 1991 | |
| Black Swift | Apodidae | 5 | 2017 | -61% | 1993 | |
| Dusky Flycatcher | Tyrannidae | 5 | 1989 | n/a | n/a | |
| Song Sparrow | Passerellidae | 5 | 2017 | -81% | 1991 | |
| Mourning Dove | Columbidae | 5 | 2016 | +367% | 1993 | |
| Bushtit | Aegithalidae | 5 | 2016 | +42% | 1999 | |
| Warbling Vireo | Vireonidae | 5 | 2017 | +180% | 2003 | |
| Townsend's Solitaire | Turdidae | 5 | 2012 | +200% | 2003 | |
| Ash-throated Flycatcher | Tyrannidae | 4 | 2017 | -26% | 1991 | |
| California Scrub-Jay | Corvidae | 4 | 2017 | +14% | 1991 | |
| European Starling | Sturnidae | 4 | 2004 | +67% | 1992 | |
| California Towhee | Passerellidae | 4 | 2017 | -43% | 1991 | |
| Canyon Wren | Troglodytidae | 4 | 2016 | -14% | 1992 | |
| Nuttall's Woodpecker | Picidae | 3 | 2017 | +50% | 1992 | |
| Cassin's Finch | Fringillidae | 3 | 2013 | +100% | 1991 | |
| House Sparrow | Passeridae | 3 | 2004 | -22% | 2000 | |
| Oak Titmouse | Paridae | 3 | 2017 | +0% | 1991 | |
| Red-breasted Nuthatch | Sittidae | 3 | 2014 | +200% | 1990 | |
| Yellow Warbler | Parulidae | 3 | 2017 | +0% | 1999 |
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22. A route is a sample, not a census.