BirdAnalyst
BBS Route · Oregon · BCR 5

Harlan 2 Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 77 species recorded across 14 survey years, still active.

77Species 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 →
14Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
2011–2025Span
3Observers

Bird Species Found on Oregon Harlan 2

Top 40 of 77 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
Swainson's ThrushTurdidae802025+41%2013
American RobinTurdidae492025+22%2013
Wilson's WarblerParulidae432025+99%2013
Black-headed GrosbeakCardinalidae402025+232%2013
Pacific WrenTroglodytidae262025+3%2013
Song SparrowPasserellidae252025+15%2013
Warbling VireoVireonidae252025-8%2013
Hermit WarblerParulidae252025+200%2013
Band-tailed PigeonColumbidae232025+25%2013
Chestnut-backed ChickadeeParidae232025+110%2014
Evening GrosbeakFringillidae222025+270%2013
Hutton's VireoVireonidae172025+625%2014
White-crowned SparrowPasserellidae122025+200%2013
Steller's JayCorvidae102025+13%2013
Orange-crowned WarblerParulidae102025+560%2013
Red-winged BlackbirdIcteridae102021n/an/a
Hammond's FlycatcherTyrannidae82025+57%2013
Western TanagerCardinalidae82025-4%2013
Downy WoodpeckerPicidae62025+200%2016
Yellow WarblerParulidae62025+60%2023
Pileated WoodpeckerPicidae52025+120%2014
Common RavenCorvidae52025+0%2013
Barn SwallowHirundinidae52025+133%2016
Black-throated Gray WarblerParulidae52025+400%2017
Turkey VultureCathartidae42025-46%2015
Hairy WoodpeckerPicidae42025-23%2014
Rufous HummingbirdTrochilidae42025+71%2013
Western Wood-PeweeTyrannidae42025+260%2013
Brown CreeperCerthiidae42025+125%2013
WrentitSylviidae42025+275%2013
Townsend's SolitaireTurdidae42019+100%2015
Purple FinchFringillidae42025-17%2021
Violet-green SwallowHirundinidae42025+33%2018
Western BluebirdTurdidae42016n/an/a
Eurasian Collared-DoveColumbidae42025+100%2023
American CrowCorvidae32025-11%2013
American GoldfinchFringillidae32024-41%2013
Cedar WaxwingBombycillidae32024-13%2021
Tree SwallowHirundinidae32023n/an/a
Northern Pygmy-OwlStrigidae22025+0%2016

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