BBS Route · Oregon · BCR 9
Dell Spring Bird Survey Route
A standard 50-stop Breeding Bird Survey route. 103 species recorded across 24 survey years, no longer active.
103Species Recorded
24Years Surveyed
1968–1999Span
3Observers
Bird Species Found on Oregon Dell Spring
Top 40 of 103 species by most recent count. Each links to its species trend.
| History | ||||||
|---|---|---|---|---|---|---|
| Red-breasted Nuthatch | Sittidae | 17 | 1999 | -47% | 1970 | |
| Pine Siskin | Fringillidae | 15 | 1996 | -43% | 1972 | |
| American Robin | Turdidae | 14 | 1999 | +48% | 1970 | |
| Canada Goose | Anatidae | 12 | 1990 | n/a | n/a | |
| Evening Grosbeak | Fringillidae | 11 | 1988 | +100% | 1971 | |
| Common Raven | Corvidae | 9 | 1999 | +360% | 1971 | |
| Clark's Nutcracker | Corvidae | 9 | 1990 | -8% | 1970 | |
| Hammond's Flycatcher | Tyrannidae | 7 | 1999 | -80% | 1974 | |
| Brewer's Blackbird | Icteridae | 6 | 1990 | -57% | 1970 | |
| Western Tanager | Cardinalidae | 6 | 1996 | -69% | 1970 | |
| Hairy Woodpecker | Picidae | 5 | 1990 | -16% | 1970 | |
| Olive-sided Flycatcher | Tyrannidae | 5 | 1999 | -76% | 1970 | |
| Yellow-headed Blackbird | Icteridae | 5 | 1990 | -89% | 1970 | |
| Golden-crowned Kinglet | Regulidae | 5 | 1988 | +63% | 1973 | |
| Double-crested Cormorant | Phalacrocoracidae | 5 | 1989 | +400% | 1980 | |
| Steller's Jay | Corvidae | 4 | 1999 | -63% | 1970 | |
| European Starling | Sturnidae | 4 | 1990 | -24% | 1971 | |
| Chipping Sparrow | Passerellidae | 4 | 1999 | -77% | 1970 | |
| Fox Sparrow | Passerellidae | 4 | 1996 | -43% | 1970 | |
| Townsend's Solitaire | Turdidae | 4 | 1990 | -7% | 1970 | |
| Mountain Bluebird | Turdidae | 4 | 1990 | +183% | 1972 | |
| Wood Duck | Anatidae | 4 | 1984 | n/a | n/a | |
| Gray Flycatcher | Tyrannidae | 4 | 1988 | n/a | n/a | |
| Wilson's Snipe | Scolopacidae | 3 | 1996 | -33% | 1970 | |
| Brown-headed Cowbird | Icteridae | 3 | 1999 | -52% | 1970 | |
| Red-winged Blackbird | Icteridae | 3 | 1999 | -67% | 1970 | |
| Green-tailed Towhee | Passerellidae | 3 | 1999 | -62% | 1970 | |
| Mountain Chickadee | Paridae | 3 | 1999 | -85% | 1970 | |
| Western Meadowlark | Icteridae | 3 | 1987 | -50% | 1969 | |
| Common Merganser | Anatidae | 3 | 1982 | n/a | n/a | |
| Red-breasted Sapsucker | Picidae | 3 | 1989 | +0% | 1984 | |
| Red-naped Sapsucker | Picidae | 3 | 1990 | +200% | 1986 | |
| Spotted Sandpiper | Scolopacidae | 2 | 1990 | +75% | 1970 | |
| Common Nighthawk | Caprimulgidae | 2 | 1999 | -70% | 1970 | |
| Western Wood-Pewee | Tyrannidae | 2 | 1999 | -89% | 1970 | |
| Cassin's Finch | Fringillidae | 2 | 1996 | -75% | 1970 | |
| Savannah Sparrow | Passerellidae | 2 | 1990 | -36% | 1970 | |
| Tree Swallow | Hirundinidae | 2 | 1990 | +100% | 1970 | |
| Cassin's Vireo | Vireonidae | 2 | 1999 | +33% | 1970 | |
| Townsend's Warbler | Parulidae | 2 | 1999 | -50% | 1970 |
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22. A route is a sample, not a census.