BirdAnalyst
BBS Route · Oregon · BCR 9

Bowden Hills Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 30 species recorded across 4 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 →
4Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1999–2025Span
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 LarkAlaudidae3542025+77%2017
Western MeadowlarkIcteridae1472025-5%2017
California QuailOdontophoridae451999n/an/a
Brewer's BlackbirdIcteridae311999n/an/a
Common RavenCorvidae172025+139%2017
Sagebrush SparrowPasserellidae172025+240%2024
Red-winged BlackbirdIcteridae112025+450%1999
Long-billed CurlewScolopacidae112025+22%2017
European StarlingSturnidae101999n/an/a
Common NighthawkCaprimulgidae92025-50%1999
Northern HarrierAccipitridae72025+120%2017
Brewer's SparrowPasserellidae62025-82%2017
Loggerhead ShrikeLaniidae42025+300%1999
Brown-headed CowbirdIcteridae32025+200%1999
American RobinTurdidae31999n/an/a
Short-eared OwlStrigidae32024n/an/a
American KestrelFalconidae21999n/an/a
Burrowing OwlStrigidae22025-50%1999
Sage ThrasherMimidae22025+200%2017
Ring-necked PheasantPhasianidae11999n/an/a
Mourning DoveColumbidae12025-80%1999
Red-tailed HawkAccipitridae12025-50%1999
Western KingbirdTyrannidae11999n/an/a
Say's PhoebeTyrannidae12025-50%1999
Cliff SwallowHirundinidae11999n/an/a
Rock WrenTroglodytidae11999n/an/a
Prairie FalconFalconidae12024+0%2017
Vesper SparrowPasserellidae12025-50%2017
Lark SparrowPasserellidae12024-94%2017
KilldeerCharadriidae12024n/an/a

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