BirdAnalyst
BBS Route · Oregon · BCR 5

Harlan 2 Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 75 species recorded across 13 survey years, still active.

75Species 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 →
13Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
2011–2024Span
3Observers

Bird Species Found on Oregon Harlan 2

Top 40 of 75 species by most recent count. Each links to its species trend.

Species recorded on the Harlan 2 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
Wilson's WarblerParulidae542024+90%2013
Warbling VireoVireonidae442024-15%2013
Swainson's ThrushTurdidae432024+7%2013
American RobinTurdidae342024+33%2013
Evening GrosbeakFringillidae292024+250%2013
Song SparrowPasserellidae272024+2%2013
Hermit WarblerParulidae252024+189%2013
Black-headed GrosbeakCardinalidae242024+156%2013
Pacific WrenTroglodytidae242024-9%2013
Steller's JayCorvidae172024+23%2013
Chestnut-backed ChickadeeParidae152024+103%2014
White-crowned SparrowPasserellidae142024+244%2013
Band-tailed PigeonColumbidae132024+23%2013
Hutton's VireoVireonidae112024+250%2014
Red-winged BlackbirdIcteridae102021n/an/a
Western Wood-PeweeTyrannidae92024+300%2013
Western TanagerCardinalidae92024-33%2013
Orange-crowned WarblerParulidae92024+540%2013
Willow FlycatcherTyrannidae82024+200%2013
Barn SwallowHirundinidae82024+117%2016
Golden-crowned KingletRegulidae72024+150%2013
Hammond's FlycatcherTyrannidae62024+64%2013
Black-throated Gray WarblerParulidae62024+320%2017
Rufous HummingbirdTrochilidae52024+71%2013
Olive-sided FlycatcherTyrannidae52024+320%2013
American CrowCorvidae52024-22%2013
WrentitSylviidae42024+300%2013
Townsend's SolitaireTurdidae42019+100%2015
Western BluebirdTurdidae42016n/an/a
Hairy WoodpeckerPicidae32024-39%2014
American GoldfinchFringillidae32024-41%2013
Brown CreeperCerthiidae32024+75%2013
Belted KingfisherAlcedinidae32024+25%2014
Common YellowthroatParulidae32024+333%2017
Mountain QuailOdontophoridae32024+100%2017
Purple FinchFringillidae32024-33%2021
Cedar WaxwingBombycillidae32024-13%2021
Tree SwallowHirundinidae32023n/an/a
Red-breasted NuthatchSittidae22024+325%2015
Black-capped ChickadeeParidae22024-60%2016

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