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BBS Route · Oregon · BCR 9

Buchanan Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 96 species recorded across 48 survey years, still active.

96Species 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 →
48Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1971–2025Span
10Observers

Bird Species Found on Oregon Buchanan

Top 40 of 96 species by most recent count. Each links to its species trend.

Species recorded on the Buchanan 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
Brewer's SparrowPasserellidae662025+6%1973
Vesper SparrowPasserellidae562025+267%1973
Western MeadowlarkIcteridae372025-30%1973
American RobinTurdidae272025-4%1973
Mountain BluebirdTurdidae272025+61%1973
Mourning DoveColumbidae252025-65%1973
Brown-headed CowbirdIcteridae172025+74%1975
Green-tailed TowheePasserellidae152025+33%1973
Rock WrenTroglodytidae132025+100%1973
Brewer's BlackbirdIcteridae82025-57%1973
Dusky FlycatcherTyrannidae82025+44%1978
Gray FlycatcherTyrannidae72025+311%1976
Chipping SparrowPasserellidae52025-76%1973
Lark SparrowPasserellidae52025-39%1977
Spotted TowheePasserellidae52025+71%1982
Northern House WrenTroglodytidae52025+6%1980
Common NighthawkCaprimulgidae42025-29%1973
Common RavenCorvidae42025+11%1976
Lewis's WoodpeckerPicidae42024+17%2022
California QuailOdontophoridae32023+6%1975
Turkey VultureCathartidae32022-44%1973
House FinchFringillidae32022-56%1981
Sage ThrasherMimidae32025-90%1973
Black-throated Gray WarblerParulidae31972n/an/a
Western KingbirdTyrannidae32025+0%1981
Long-eared OwlStrigidae31980n/an/a
Northern ShovelerAnatidae31983n/an/a
Black-headed GrosbeakCardinalidae32023+40%2004
American KestrelFalconidae22025+86%1973
Black-billed MagpieCorvidae22025+0%1977
American CrowCorvidae21997+0%1972
White-crowned SparrowPasserellidae22024+17%1981
Fox SparrowPasserellidae21984+100%1973
Wilson's PhalaropeScolopacidae21976n/an/a
Loggerhead ShrikeLaniidae22025-30%1979
Hermit ThrushTurdidae22010-33%1983
Clark's NutcrackerCorvidae21999+0%1995
Golden EagleAccipitridae21998+100%1982
Ferruginous HawkAccipitridae22000+0%1991
Bullock's OrioleIcteridae22025+33%1989

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