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BBS Route · Oregon · BCR 5

Secret Val Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 113 species recorded across 36 survey years, still active.

113Species 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 →
36Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1975–2022Span
4Observers

Bird Species Found on Oregon Secret Val

Top 40 of 113 species by most recent count. Each links to its species trend.

Species recorded on the Secret Val 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
Black-headed GrosbeakCardinalidae372022-37%1977
Red CrossbillFringillidae341988n/an/a
Western TanagerCardinalidae332022-49%1977
Steller's JayCorvidae292022+20%1977
European StarlingSturnidae262022+73%1977
Cliff SwallowHirundinidae242022-4%1977
Violet-green SwallowHirundinidae202022-68%1977
Lazuli BuntingCardinalidae192022-57%1977
American RobinTurdidae192022+19%1977
Nashville WarblerParulidae162022-58%1977
Western Wood-PeweeTyrannidae132022-65%1977
Spotted TowheePasserellidae132022-40%1977
Hermit WarblerParulidae132022-71%1977
Northern Rough-winged SwallowHirundinidae112022+75%1977
Cassin's VireoVireonidae112022-10%1977
Yellow-breasted ChatIcteriidae102022-29%1977
Northern House WrenTroglodytidae102022-61%1977
Olive-sided FlycatcherTyrannidae92022-86%1977
Orange-crowned WarblerParulidae92022-53%1977
Black-throated Gray WarblerParulidae92022+92%1982
Bullock's OrioleIcteridae82022+100%1978
Red-breasted NuthatchSittidae82022+8%1977
Hermit ThrushTurdidae82022+48%1977
Band-tailed PigeonColumbidae82022-60%1994
Mountain QuailOdontophoridae72022+0%1978
Purple FinchFringillidae72022+100%1977
Lesser GoldfinchFringillidae72022-52%1977
Chestnut-backed ChickadeeParidae72022+14%1978
Acorn WoodpeckerPicidae72022+67%1979
Chipping SparrowPasserellidae62022-25%1978
Ash-throated FlycatcherTyrannidae62022+180%1978
Common RavenCorvidae62022+15%1982
Tree SwallowHirundinidae52022-81%1978
Warbling VireoVireonidae52022-39%1977
MacGillivray's WarblerParulidae52022-79%1977
Golden-crowned KingletRegulidae51993-46%1977
Red-winged BlackbirdIcteridae52022+60%1984
California Scrub-JayCorvidae42022+157%1977
Brown-headed CowbirdIcteridae42022-8%1977
Song SparrowPasserellidae42022-20%1977

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