BirdAnalyst
BBS Route · Washington · BCR 9

Index 2 Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 44 species recorded across 6 survey years, still active.

44Species 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 →
6Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
2014–2023Span
2Observers

Bird Species Found on Washington Index 2

Top 40 of 44 species by most recent count. Each links to its species trend.

Species recorded on the Index 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 ThrushTurdidae412023-36%2016
Chestnut-backed ChickadeeParidae342023+113%2016
American RobinTurdidae252023-11%2016
Western TanagerCardinalidae222023+92%2016
Pacific WrenTroglodytidae212023-41%2016
Townsend's WarblerParulidae172023+200%2016
Red CrossbillFringillidae132022+86%2015
Pine SiskinFringillidae102023n/an/a
Warbling VireoVireonidae92023+140%2016
Cedar WaxwingBombycillidae82023+50%2015
Vaux's SwiftApodidae82023+350%2016
Hammond's FlycatcherTyrannidae62023+80%2015
Common RavenCorvidae52023+50%2015
Red-breasted NuthatchSittidae52023+150%2014
Varied ThrushTurdidae52023-21%2016
Willow FlycatcherTyrannidae42023+10%2016
MacGillivray's WarblerParulidae42023-33%2016
Golden-crowned KingletRegulidae42023+38%2016
Hairy WoodpeckerPicidae32023-56%2015
Red-breasted SapsuckerPicidae32023+200%2014
Rufous HummingbirdTrochilidae22023+100%2014
Steller's JayCorvidae22023+133%2016
White-crowned SparrowPasserellidae22022+0%2014
Spotted TowheePasserellidae22023+150%2015
Hermit ThrushTurdidae22023-64%2015
Brown CreeperCerthiidae22023n/an/a
Pileated WoodpeckerPicidae12023-50%2014
Song SparrowPasserellidae12023-33%2015
Black-headed GrosbeakCardinalidae12023-63%2016
Orange-crowned WarblerParulidae12023-50%2014
Black-throated Gray WarblerParulidae12023-46%2016
Northern Rough-winged SwallowHirundinidae12015n/an/a
Hutton's VireoVireonidae12018-50%2015
Band-tailed PigeonColumbidae12016n/an/a
Western Wood-PeweeTyrannidae12016n/an/a
Purple FinchFringillidae12016n/an/a
Common YellowthroatParulidae12016n/an/a
Sooty GrousePhasianidae12023-50%2018
Wilson's WarblerParulidae12022-50%2018
Olive-sided FlycatcherTyrannidae12022n/an/a

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