BBS Route · Oregon · BCR 9
Princeton Bird Survey Route
A standard 50-stop Breeding Bird Survey route. 96 species recorded across 13 survey years, no longer active.
96Species Recorded
13Years Surveyed
1972–1985Span
8Observers
Bird Species Found on Oregon Princeton
Top 40 of 96 species by most recent count. Each links to its species trend.
| History | ||||||
|---|---|---|---|---|---|---|
| Brewer's Sparrow | Passerellidae | 144 | 1985 | -1% | 1974 | |
| Brewer's Blackbird | Icteridae | 142 | 1985 | +32% | 1974 | |
| Cliff Swallow | Hirundinidae | 103 | 1985 | -40% | 1974 | |
| Western Meadowlark | Icteridae | 92 | 1985 | -12% | 1974 | |
| Common Raven | Corvidae | 83 | 1985 | +222% | 1974 | |
| Sage Thrasher | Mimidae | 82 | 1985 | -18% | 1974 | |
| Yellow-headed Blackbird | Icteridae | 78 | 1985 | +9% | 1974 | |
| Red-winged Blackbird | Icteridae | 70 | 1985 | -32% | 1974 | |
| Vesper Sparrow | Passerellidae | 45 | 1985 | +515% | 1981 | |
| Ring-billed Gull | Laridae | 43 | 1985 | 12× | 1979 | |
| European Starling | Sturnidae | 35 | 1985 | +330% | 1974 | |
| Savannah Sparrow | Passerellidae | 35 | 1985 | +290% | 1978 | |
| Horned Lark | Alaudidae | 33 | 1985 | -5% | 1974 | |
| Barn Swallow | Hirundinidae | 27 | 1985 | -3% | 1974 | |
| California Gull | Laridae | 25 | 1985 | +456% | 1979 | |
| Mourning Dove | Columbidae | 17 | 1985 | -52% | 1974 | |
| Brown-headed Cowbird | Icteridae | 16 | 1985 | +44% | 1976 | |
| American Wigeon | Anatidae | 15 | 1981 | +150% | 1972 | |
| Cinnamon Teal | Anatidae | 14 | 1985 | +44% | 1974 | |
| Franklin's Gull | Laridae | 13 | 1985 | -81% | 1977 | |
| Wilson's Phalarope | Scolopacidae | 12 | 1985 | -42% | 1974 | |
| Forster's Tern | Laridae | 11 | 1985 | -8% | 1974 | |
| Long-billed Curlew | Scolopacidae | 11 | 1985 | -58% | 1974 | |
| American White Pelican | Pelecanidae | 11 | 1985 | -22% | 1979 | |
| Mallard | Anatidae | 10 | 1985 | +277% | 1974 | |
| Song Sparrow | Passerellidae | 10 | 1985 | +10% | 1983 | |
| Canvasback | Anatidae | 10 | 1984 | -75% | 1981 | |
| House Sparrow | Passeridae | 9 | 1985 | -50% | 1977 | |
| Rock Wren | Troglodytidae | 9 | 1985 | +260% | 1977 | |
| Marsh Wren | Troglodytidae | 9 | 1985 | -24% | 1981 | |
| Ruddy Duck | Anatidae | 9 | 1983 | +5% | 1979 | |
| Wilson's Snipe | Scolopacidae | 8 | 1985 | -73% | 1974 | |
| Double-crested Cormorant | Phalacrocoracidae | 8 | 1985 | +130% | 1981 | |
| Canada Goose | Anatidae | 8 | 1985 | -57% | 1981 | |
| Lesser Scaup | Anatidae | 7 | 1975 | +600% | 1972 | |
| Lark Sparrow | Passerellidae | 7 | 1985 | +88% | 1974 | |
| Willet | Scolopacidae | 6 | 1984 | +55% | 1974 | |
| Ring-necked Pheasant | Phasianidae | 6 | 1985 | -44% | 1974 | |
| Northern Harrier | Accipitridae | 6 | 1985 | -8% | 1974 | |
| Gadwall | Anatidae | 5 | 1985 | +3% | 1975 |
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22. A route is a sample, not a census.