BBS Route · California · BCR 5
Big Flat Bird Survey Route
A standard 50-stop Breeding Bird Survey route. 54 species recorded across 7 survey years, still active.
54Species Recorded
7Years Surveyed
2002–2014Span
2Observers
Bird Species Found on California Big Flat
Top 40 of 54 species by most recent count. Each links to its species trend.
| History | ||||||
|---|---|---|---|---|---|---|
| Wrentit | Sylviidae | 29 | 2014 | -30% | 2004 | |
| Spotted Towhee | Passerellidae | 23 | 2014 | -2% | 2004 | |
| Hermit Thrush | Turdidae | 22 | 2014 | -25% | 2004 | |
| Swainson's Thrush | Turdidae | 20 | 2014 | -22% | 2004 | |
| Western Tanager | Cardinalidae | 18 | 2014 | -48% | 2004 | |
| Red-breasted Nuthatch | Sittidae | 15 | 2014 | +26% | 2004 | |
| Steller's Jay | Corvidae | 14 | 2014 | -9% | 2004 | |
| Black-throated Gray Warbler | Parulidae | 12 | 2014 | -10% | 2004 | |
| Band-tailed Pigeon | Columbidae | 5 | 2014 | +13% | 2004 | |
| Hermit Warbler | Parulidae | 5 | 2014 | -65% | 2006 | |
| Pacific Wren | Troglodytidae | 5 | 2014 | +67% | 2006 | |
| Nashville Warbler | Parulidae | 4 | 2012 | +67% | 2004 | |
| Allen's Hummingbird | Trochilidae | 4 | 2014 | n/a | n/a | |
| Cassin's Vireo | Vireonidae | 3 | 2004 | +0% | 2002 | |
| MacGillivray's Warbler | Parulidae | 3 | 2014 | -37% | 2004 | |
| Hairy Woodpecker | Picidae | 2 | 2011 | +0% | 2002 | |
| Dusky Flycatcher | Tyrannidae | 2 | 2014 | -29% | 2004 | |
| Common Raven | Corvidae | 2 | 2014 | +0% | 2004 | |
| Black-headed Grosbeak | Cardinalidae | 2 | 2012 | -57% | 2003 | |
| Warbling Vireo | Vireonidae | 2 | 2014 | -33% | 2003 | |
| Hutton's Vireo | Vireonidae | 2 | 2014 | -77% | 2004 | |
| American Dipper | Cinclidae | 2 | 2002 | n/a | n/a | |
| American Robin | Turdidae | 2 | 2014 | +100% | 2003 | |
| Fox Sparrow | Passerellidae | 2 | 2004 | -60% | 2003 | |
| Golden-crowned Kinglet | Regulidae | 2 | 2011 | +50% | 2004 | |
| Varied Thrush | Turdidae | 2 | 2003 | n/a | n/a | |
| Townsend's Solitaire | Turdidae | 2 | 2014 | -25% | 2011 | |
| Pine Siskin | Fringillidae | 2 | 2012 | n/a | n/a | |
| Western Wood-Pewee | Tyrannidae | 1 | 2002 | n/a | n/a | |
| Purple Finch | Fringillidae | 1 | 2012 | -50% | 2004 | |
| White-crowned Sparrow | Passerellidae | 1 | 2002 | n/a | n/a | |
| Song Sparrow | Passerellidae | 1 | 2012 | -50% | 2004 | |
| Violet-green Swallow | Hirundinidae | 1 | 2002 | n/a | n/a | |
| Northern Rough-winged Swallow | Hirundinidae | 1 | 2002 | n/a | n/a | |
| Orange-crowned Warbler | Parulidae | 1 | 2014 | +50% | 2006 | |
| Wilson's Warbler | Parulidae | 1 | 2014 | -54% | 2004 | |
| Bewick's Wren | Troglodytidae | 1 | 2012 | +0% | 2004 | |
| Brown Creeper | Certhiidae | 1 | 2014 | -63% | 2004 | |
| Mountain Chickadee | Paridae | 1 | 2014 | -46% | 2004 | |
| Chestnut-backed Chickadee | Paridae | 1 | 2012 | -55% | 2004 |
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22. A route is a sample, not a census.