BirdAnalyst
BBS Route · Oregon · BCR 5

Scio Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 115 species recorded across 38 survey years, still active.

115Species RecordedSpecies recordedDistinct species detected on standard-protocol BBS runs here across all years on record — a measure of survey breadth, not a complete checklist.Full methodology →
38Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1971–2024Span
6Observers

Bird Species Found on Oregon Scio

Top 40 of 115 species by most recent count. Each links to its species trend.

Species recorded on the Scio route.
Recent countThe raw number of individuals recorded on this route in its most recent survey year. A single-route tally, not a trend.Full methodology →TrendPercent change in the route-weighted abundance index between a smoothed baseline window and the most recent one. It tracks direction, not absolute population.Full methodology →Baseline yearThe first year of the smoothed window the trend is measured from. An earlier baseline means a longer record stands behind the number.Full methodology →History
American RobinTurdidae382024+34%1975
European StarlingSturnidae352024+45%1975
Red CrossbillFringillidae35200535×2000
Swainson's ThrushTurdidae262024-34%1985
Violet-green SwallowHirundinidae222024+169%1975
White-crowned SparrowPasserellidae202024+76%1975
Song SparrowPasserellidae192024+6%1975
Black-headed GrosbeakCardinalidae172024+8%1975
Western Wood-PeweeTyrannidae162024+18%1981
Western TanagerCardinalidae132024+30%1975
Hermit ThrushTurdidae132002+18%1972
California Scrub-JayCorvidae10202411×1975
American CrowCorvidae102024-26%1975
Band-tailed PigeonColumbidae92024-41%1975
Willow FlycatcherTyrannidae92024-26%1975
Spotted TowheePasserellidae92024+27%1975
Cedar WaxwingBombycillidae92024-35%1975
Warbling VireoVireonidae92024+82%1985
California QuailOdontophoridae82024+21%1975
Brewer's BlackbirdIcteridae82024-65%1975
American GoldfinchFringillidae82024-64%1975
Evening GrosbeakFringillidae72022-31%1990
Black-capped ChickadeeParidae72024+56%1975
Common YellowthroatParulidae62024-35%1975
American KestrelFalconidae62024-8%1985
Mourning DoveColumbidae52024+50%1975
Red-tailed HawkAccipitridae52024+250%1975
Red-winged BlackbirdIcteridae52024+38%1981
Savannah SparrowPasserellidae52024-37%1981
Purple FinchFringillidae52024-71%1985
Orange-crowned WarblerParulidae42024-23%1981
Red-breasted SapsuckerPicidae42021+60%1988
Horned LarkAlaudidae42017+60%1999
MallardAnatidae42012+20%1991
Steller's JayCorvidae32024+86%1975
Bewick's WrenTroglodytidae32024-44%1981
Varied ThrushTurdidae32004+50%1988
Common RavenCorvidae32024+33%1985
Chestnut-backed ChickadeeParidae32024-33%1988
Wild TurkeyPhasianidae32022+75%2001

Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22. A route is a sample, not a census.