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BBS Route · Oregon · BCR 10

Eagle Rock Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 95 species recorded across 8 survey years, no longer active.

95Species 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 →
8Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1971–1979Span
3Observers

Bird Species Found on Oregon Eagle Rock

Top 40 of 95 species by most recent count. Each links to its species trend.

Species recorded on the Eagle Rock 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 CrossbillFringillidae461979+400%1973
American RobinTurdidae281979-15%1974
Gray FlycatcherTyrannidae161974-11%1971
Chipping SparrowPasserellidae131979-39%1974
Western TanagerCardinalidae121979-63%1974
Mourning DoveColumbidae111979-39%1974
Black-billed MagpieCorvidae111979-11%1974
Red-winged BlackbirdIcteridae111979-26%1974
Brown-headed CowbirdIcteridae91979+20%1975
Vaux's SwiftApodidae81971n/an/a
Western Wood-PeweeTyrannidae81979-38%1975
BushtitAegithalidae81977+167%1973
Common NighthawkCaprimulgidae71979+22%1975
Cassin's FinchFringillidae61979-16%1974
Mountain ChickadeeParidae61979-28%1975
Pygmy NuthatchSittidae61978+120%1976
California QuailOdontophoridae51979-17%1975
Western MeadowlarkIcteridae51979-6%1975
Brewer's BlackbirdIcteridae41979-74%1974
Brewer's SparrowPasserellidae41979-54%1974
Cassin's VireoVireonidae41979-9%1976
Clark's NutcrackerCorvidae41979+300%1973
Warbling VireoVireonidae41979-17%1974
Hammond's FlycatcherTyrannidae41974n/an/a
Canada JayCorvidae41977+33%1976
Evening GrosbeakFringillidae41979+300%1976
MallardAnatidae41977n/an/a
Steller's JayCorvidae31979+6%1974
Common RavenCorvidae31979+100%1974
Lark SparrowPasserellidae31978+10%1975
Song SparrowPasserellidae31979+180%1974
Barn SwallowHirundinidae31979+10%1974
Mountain BluebirdTurdidae31979-75%1974
Brown CreeperCerthiidae31977+200%1976
Red-tailed HawkAccipitridae21979+25%1974
Hairy WoodpeckerPicidae21979-25%1973
American CrowCorvidae21977+117%1973
House FinchFringillidae21976-17%1973
Green-tailed TowheePasserellidae21974-33%1971
Lazuli BuntingCardinalidae21971n/an/a

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