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BBS Route · Oregon · BCR 5

Harlan Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 50 species recorded across 4 survey years, no longer active.

50Species 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 →
2006–2009Span
1Observers

Bird Species Found on Oregon Harlan

Top 40 of 50 species by most recent count. Each links to its species trend.

Species recorded on the Harlan 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
Swainson's ThrushTurdidae872009-29%2007
Wilson's WarblerParulidae322009-6%2007
American RobinTurdidae272009+2%2007
Warbling VireoVireonidae232009+8%2007
Band-tailed PigeonColumbidae222009+106%2007
Pacific WrenTroglodytidae212009-10%2007
Hermit WarblerParulidae182009-23%2007
Evening GrosbeakFringillidae142009+367%2006
Western TanagerCardinalidae112009+20%2007
Black-headed GrosbeakCardinalidae102009+0%2007
Chestnut-backed ChickadeeParidae102009-13%2007
Song SparrowPasserellidae92009+24%2007
Steller's JayCorvidae82009+20%2007
Varied ThrushTurdidae82009-11%2007
White-crowned SparrowPasserellidae62009+46%2007
Brown CreeperCerthiidae62008+200%2006
Tree SwallowHirundinidae52008+150%2007
Red-breasted NuthatchSittidae42009+100%2007
BushtitAegithalidae42009+33%2006
American CrowCorvidae32009-25%2007
Brewer's BlackbirdIcteridae32009-63%2006
American GoldfinchFringillidae32009-57%2006
Barn SwallowHirundinidae32006n/an/a
Rufous HummingbirdTrochilidae22009-33%2006
Hammond's FlycatcherTyrannidae22009-43%2007
Purple FinchFringillidae22009+0%2007
Orange-crowned WarblerParulidae22009-50%2006
Golden-crowned KingletRegulidae22009+0%2007
Pileated WoodpeckerPicidae22009+100%2007
Olive-sided FlycatcherTyrannidae22009-33%2007
Black-throated Gray WarblerParulidae22009+0%2007
WrentitSylviidae22009-50%2008
Turkey VultureCathartidae12006n/an/a
Common RavenCorvidae12009-67%2006
European StarlingSturnidae12007+0%2006
Savannah SparrowPasserellidae12006n/an/a
Chipping SparrowPasserellidae12009-67%2007
Spotted TowheePasserellidae12008-50%2006
Hutton's VireoVireonidae12007+0%2006
MacGillivray's WarblerParulidae12009-64%2007

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