BirdAnalyst
BBS Route · Washington · BCR 5

Issaquah Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 85 species recorded across 19 survey years, no longer active.

85Species 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 →
19Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1969–1987Span
4Observers

Bird Species Found on Washington Issaquah

Top 40 of 85 species by most recent count. Each links to its species trend.

Species recorded on the Issaquah 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 ThrushTurdidae581987-22%1971
American RobinTurdidae561987-21%1971
Spotted TowheePasserellidae431987+29%1971
Willow FlycatcherTyrannidae361987-49%1971
American CrowCorvidae341987-10%1971
European StarlingSturnidae281987+42%1971
Song SparrowPasserellidae271987-30%1971
Barn SwallowHirundinidae231987+33%1971
Pine SiskinFringillidae201987+88%1971
Chestnut-backed ChickadeeParidae201987-2%1971
Brewer's BlackbirdIcteridae191987+137%1971
White-crowned SparrowPasserellidae181987-20%1971
Black-capped ChickadeeParidae181987+114%1971
Violet-green SwallowHirundinidae171987-43%1971
Cedar WaxwingBombycillidae131987-15%1971
Golden-crowned KingletRegulidae131987+28%1971
BushtitAegithalidae131986+100%1974
Brown-headed CowbirdIcteridae101987-30%1971
House SparrowPasseridae101987+3%1971
Pacific WrenTroglodytidae101987+65%1972
Red CrossbillFringillidae101987-17%1984
Rock PigeonColumbidae91985-8%1971
Purple FinchFringillidae91987-47%1971
Wilson's WarblerParulidae91987+0%1971
Red-eyed VireoVireonidae71987-84%1971
Ruby-crowned KingletRegulidae61977n/an/a
American GoldfinchFringillidae51987-60%1971
Common YellowthroatParulidae51987+90%1972
House FinchFringillidae41987-17%1971
Chipping SparrowPasserellidae41986+86%1972
Warbling VireoVireonidae41985-63%1971
Bewick's WrenTroglodytidae41987-13%1971
Black SwiftApodidae41984+33%1979
Marsh WrenTroglodytidae41986-14%1983
Vaux's SwiftApodidae31984+33%1971
Steller's JayCorvidae31987+140%1971
Red-winged BlackbirdIcteridae31987+21%1971
Cliff SwallowHirundinidae31987+15%1971
Orange-crowned WarblerParulidae31987-58%1971
Red-breasted NuthatchSittidae31987+225%1971

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