BBS Route · California · BCR 32
Foster Park Bird Survey Route
A standard 50-stop Breeding Bird Survey route. 109 species recorded across 25 survey years, no longer active.
109Species Recorded
25Years Surveyed
1968–1994Span
4Observers
Bird Species Found on California Foster Park
Top 40 of 109 species by most recent count. Each links to its species trend.
| History | ||||||
|---|---|---|---|---|---|---|
| House Finch | Fringillidae | 60 | 1994 | -28% | 1970 | |
| Bushtit | Aegithalidae | 52 | 1994 | -18% | 1970 | |
| Cliff Swallow | Hirundinidae | 42 | 1994 | -45% | 1970 | |
| European Starling | Sturnidae | 33 | 1994 | 19× | 1970 | |
| California Towhee | Passerellidae | 29 | 1994 | +31% | 1970 | |
| Wrentit | Sylviidae | 27 | 1994 | +38% | 1970 | |
| California Scrub-Jay | Corvidae | 25 | 1994 | +114% | 1970 | |
| Mourning Dove | Columbidae | 20 | 1994 | +47% | 1970 | |
| Lesser Goldfinch | Fringillidae | 20 | 1994 | +11% | 1970 | |
| Spotted Towhee | Passerellidae | 16 | 1994 | -57% | 1970 | |
| Northern Mockingbird | Mimidae | 16 | 1994 | +144% | 1970 | |
| House Sparrow | Passeridae | 16 | 1994 | -5% | 1973 | |
| Red-winged Blackbird | Icteridae | 15 | 1994 | +229% | 1972 | |
| Costa's Hummingbird | Trochilidae | 14 | 1993 | +433% | 1975 | |
| Black-headed Grosbeak | Cardinalidae | 14 | 1994 | -39% | 1970 | |
| American Crow | Corvidae | 13 | 1994 | -7% | 1970 | |
| Northern House Wren | Troglodytidae | 13 | 1994 | +53% | 1970 | |
| Lawrence's Goldfinch | Fringillidae | 11 | 1985 | -35% | 1977 | |
| Ash-throated Flycatcher | Tyrannidae | 11 | 1994 | +105% | 1971 | |
| Acorn Woodpecker | Picidae | 9 | 1994 | +166% | 1970 | |
| Oak Titmouse | Paridae | 7 | 1994 | -25% | 1970 | |
| Steller's Jay | Corvidae | 7 | 1994 | +250% | 1975 | |
| Song Sparrow | Passerellidae | 5 | 1994 | +244% | 1970 | |
| Northern Rough-winged Swallow | Hirundinidae | 5 | 1994 | +0% | 1970 | |
| Phainopepla | Ptiliogonatidae | 5 | 1994 | +111% | 1970 | |
| Yellow Warbler | Parulidae | 5 | 1994 | +138% | 1977 | |
| California Thrasher | Mimidae | 5 | 1994 | +0% | 1971 | |
| Lazuli Bunting | Cardinalidae | 5 | 1994 | +240% | 1975 | |
| Common Yellowthroat | Parulidae | 5 | 1994 | +88% | 1981 | |
| Ruddy Duck | Anatidae | 5 | 1975 | n/a | n/a | |
| American Coot | Rallidae | 4 | 1994 | +67% | 1974 | |
| Hooded Oriole | Icteridae | 4 | 1994 | +111% | 1970 | |
| Bullock's Oriole | Icteridae | 4 | 1994 | +179% | 1970 | |
| Cassin's Kingbird | Tyrannidae | 4 | 1981 | +333% | 1973 | |
| Red-tailed Hawk | Accipitridae | 3 | 1994 | +75% | 1970 | |
| Nuttall's Woodpecker | Picidae | 3 | 1994 | +150% | 1971 | |
| Western Meadowlark | Icteridae | 3 | 1993 | -81% | 1970 | |
| Bewick's Wren | Troglodytidae | 3 | 1994 | -26% | 1970 | |
| Western Bluebird | Turdidae | 3 | 1994 | +22% | 1973 | |
| Western Kingbird | Tyrannidae | 3 | 1994 | +200% | 1975 |
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22. A route is a sample, not a census.