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BBS Route · Oregon · BCR 5

Dayton Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 108 species recorded across 34 survey years, still active.

108Species 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 →
34Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1973–2025Span
7Observers

Bird Species Found on Oregon Dayton

Top 40 of 108 species by most recent count. Each links to its species trend.

Species recorded on the Dayton 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
European StarlingSturnidae1512025+152%1975
American RobinTurdidae1052025+92%1975
House FinchFringillidae872025+588%1975
Brewer's BlackbirdIcteridae682025-50%1975
Red-winged BlackbirdIcteridae512025+75%1975
American GoldfinchFringillidae432025+274%1975
House SparrowPasseridae372025+141%1975
Spotted TowheePasserellidae23202515×1975
Eurasian Collared-DoveColumbidae222025+275%2012
Tree SwallowHirundinidae212025+264%1988
Western Wood-PeweeTyrannidae202025-10%1975
White-crowned SparrowPasserellidae202025+644%1976
Savannah SparrowPasserellidae192025+7%1975
Song SparrowPasserellidae162025-51%1975
Lesser GoldfinchFringillidae162025+56%2012
Brown-headed CowbirdIcteridae152025+160%1977
Black-capped ChickadeeParidae132025+136%1975
American CrowCorvidae122025-62%1975
Purple FinchFringillidae112025+108%1978
KilldeerCharadriidae112025+92%1976
California Scrub-JayCorvidae102025+0%1975
Violet-green SwallowHirundinidae102025-80%1975
Cedar WaxwingBombycillidae102025+217%1978
Mourning DoveColumbidae92025-66%1975
Black-headed GrosbeakCardinalidae92025+69%1975
Chipping SparrowPasserellidae82025+125%1987
Barn SwallowHirundinidae82025-16%1975
Cinnamon TealAnatidae81993+700%1991
Bullock's OrioleIcteridae72015+36%1990
Bewick's WrenTroglodytidae72025+33%1990
Rock PigeonColumbidae62024+2%1976
Common YellowthroatParulidae62024-41%1975
Swainson's ThrushTurdidae62025+0%1987
Lewis's WoodpeckerPicidae61976n/an/a
Steller's JayCorvidae52025+275%1976
Cliff SwallowHirundinidae52025+83%1975
Orange-crowned WarblerParulidae52022-22%1977
Blue-gray GnatcatcherPolioptilidae51997n/an/a
Turkey VultureCathartidae42025+38%1975
Vaux's SwiftApodidae42024+300%1991

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