BirdAnalyst
BBS Route · Oregon · BCR 9

Bowden Hills Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 30 species recorded across 3 survey years, still active.

30Species 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 →
3Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1999–2024Span
3Observers

Bird Species Found on Oregon Bowden Hills

Top 30 of 30 species by most recent count. Each links to its species trend.

Species recorded on the Bowden Hills 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
Horned LarkAlaudidae2282024+204%1999
Western MeadowlarkIcteridae672024-49%1999
California QuailOdontophoridae451999n/an/a
Brewer's BlackbirdIcteridae311999n/an/a
Common RavenCorvidae142024+133%1999
European StarlingSturnidae101999n/an/a
Loggerhead ShrikeLaniidae82024+700%1999
Red-winged BlackbirdIcteridae52024+150%1999
Sagebrush SparrowPasserellidae52024n/an/a
Northern HarrierAccipitridae42024+0%1999
Sage ThrasherMimidae42024+300%1999
Long-billed CurlewScolopacidae42024-56%2017
Brewer's SparrowPasserellidae32024-93%1999
American RobinTurdidae31999n/an/a
Short-eared OwlStrigidae32024n/an/a
Mourning DoveColumbidae22024-60%1999
Red-tailed HawkAccipitridae21999n/an/a
American KestrelFalconidae21999n/an/a
Burrowing OwlStrigidae22024-50%1999
Common NighthawkCaprimulgidae22024-89%1999
Say's PhoebeTyrannidae21999n/an/a
Vesper SparrowPasserellidae22017n/an/a
Ring-necked PheasantPhasianidae11999n/an/a
Western KingbirdTyrannidae11999n/an/a
Brown-headed CowbirdIcteridae11999n/an/a
Cliff SwallowHirundinidae11999n/an/a
Rock WrenTroglodytidae11999n/an/a
Prairie FalconFalconidae12024+0%2017
Lark SparrowPasserellidae12024-94%2017
KilldeerCharadriidae12024n/an/a

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