BirdAnalyst
BBS Route · Oregon · BCR 5

Svensen Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 76 species recorded across 3 survey years, no longer active.

76Species 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 →
1990–1992Span
1Observers

Bird Species Found on Oregon Svensen

Top 40 of 76 species by most recent count. Each links to its species trend.

Species recorded on the Svensen 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 StarlingSturnidae751992+400%1990
American RobinTurdidae621992+51%1990
Barn SwallowHirundinidae441992+69%1990
American GoldfinchFringillidae411992+86%1990
Wilson's WarblerParulidae411992+58%1990
Song SparrowPasserellidae331992+18%1990
Swainson's ThrushTurdidae271992+42%1990
Cedar WaxwingBombycillidae261992+18%1990
Red CrossbillFringillidae24199212×1990
Pacific WrenTroglodytidae241992+4%1990
Black-capped ChickadeeParidae241992+700%1990
White-crowned SparrowPasserellidae221992+47%1990
House FinchFringillidae191992+0%1990
Warbling VireoVireonidae191992+58%1990
Violet-green SwallowHirundinidae181992-22%1990
Black-throated Gray WarblerParulidae181992+350%1990
American CrowCorvidae171992-47%1990
Steller's JayCorvidae151992+50%1990
Willow FlycatcherTyrannidae141992+56%1990
Common YellowthroatParulidae141992+367%1990
Golden-crowned KingletRegulidae131992+8%1990
Tree SwallowHirundinidae101992-17%1990
Brown-headed CowbirdIcteridae91992+125%1990
Black-headed GrosbeakCardinalidae91992+13%1990
Varied ThrushTurdidae91992-53%1990
Rufous HummingbirdTrochilidae81992-20%1990
Townsend's WarblerParulidae81990n/an/a
Chestnut-backed ChickadeeParidae81992+33%1990
Olive-sided FlycatcherTyrannidae71992+40%1990
Common RavenCorvidae71992+75%1990
Cliff SwallowHirundinidae71992+0%1990
MallardAnatidae71991n/an/a
Great Blue HeronArdeidae61992+50%1990
Brewer's BlackbirdIcteridae61991-33%1990
Savannah SparrowPasserellidae61992-25%1990
Orange-crowned WarblerParulidae51992+0%1990
Downy WoodpeckerPicidae51992+67%1991
Turkey VultureCathartidae41992-64%1990
Red-winged BlackbirdIcteridae41992-33%1990
Purple FinchFringillidae41992-60%1990

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