BirdAnalyst
BBS Route · Oregon · BCR 5

Shellrock Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 81 species recorded across 52 survey years, still active.

81Species 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 →
52Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1968–2024Span
5Observers

Bird Species Found on Oregon Shellrock

Top 40 of 81 species by most recent count. Each links to its species trend.

Species recorded on the Shellrock 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
Red-breasted NuthatchSittidae332024+0%1970
Hermit ThrushTurdidae302024-23%1970
Townsend's WarblerParulidae242024+638%1973
Western TanagerCardinalidae192024+48%1970
Chestnut-backed ChickadeeParidae192024+85%1970
Golden-crowned KingletRegulidae182024+105%1970
Hammond's FlycatcherTyrannidae152024+238%1970
Hermit WarblerParulidae132024-59%1970
Red CrossbillFringillidae122023-50%1971
Band-tailed PigeonColumbidae122017+500%2001
Pine SiskinFringillidae102024-72%1970
Olive-sided FlycatcherTyrannidae92024-63%1970
Swainson's ThrushTurdidae82024+20%1970
Canada GooseAnatidae72010n/an/a
Chipping SparrowPasserellidae62024+67%1973
Varied ThrushTurdidae62024-71%1970
Rock PigeonColumbidae61990n/an/a
Common RavenCorvidae52024+44%1971
Pacific WrenTroglodytidae52024+100%1970
Brown CreeperCerthiidae52024+217%1971
Black-throated Gray WarblerParulidae42024+0%1996
Steller's JayCorvidae32024-29%1970
Canada JayCorvidae32024-36%1970
Evening GrosbeakFringillidae32022-19%1970
Purple FinchFringillidae32017+333%1979
Vaux's SwiftApodidae32022-11%1972
Western Wood-PeweeTyrannidae32017+50%1980
Red-tailed HawkAccipitridae32016+100%1994
Black-capped ChickadeeParidae32024-74%1994
Mountain QuailOdontophoridae32019+100%2011
Williamson's SapsuckerPicidae32015+50%2014
Hairy WoodpeckerPicidae22024+50%1970
Pileated WoodpeckerPicidae22018-33%1972
Rufous HummingbirdTrochilidae22023+50%1972
Warbling VireoVireonidae22019+0%1977
American RobinTurdidae22024-75%1970
Common NighthawkCaprimulgidae22022+500%1971
Black-headed GrosbeakCardinalidae22017+80%1995
Mountain ChickadeeParidae21973n/an/a
Red-eyed VireoVireonidae21994n/an/a

Source: USGS North American Breeding Bird Survey, retrieved 2026-08-14. A route is a sample, not a census.