BirdAnalyst
BBS Route · Washington · BCR 5

Vashon Is. Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 76 species recorded across 23 survey years, still active.

76Species 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 →
23Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1995–2025Span
3Observers

Bird Species Found on Washington Vashon Is.

Top 40 of 76 species by most recent count. Each links to its species trend.

Species recorded on the Vashon Is. 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
American RobinTurdidae792025+90%1997
Spotted TowheePasserellidae582025+59%1997
Chestnut-backed ChickadeeParidae562025+233%1997
Song SparrowPasserellidae432025-1%1997
Swainson's ThrushTurdidae412025+112%1997
Red-breasted NuthatchSittidae362025+482%1997
Pine SiskinFringillidae352025+182%2000
American CrowCorvidae312025-51%1997
Brown CreeperCerthiidae26202515×2001
American GoldfinchFringillidae252025+143%1997
Red CrossbillFringillidae242025-13%2000
House FinchFringillidae222025+26%1997
Black-headed GrosbeakCardinalidae212025-4%1997
White-crowned SparrowPasserellidae192025+98%1997
Cedar WaxwingBombycillidae192025+188%1997
Wilson's WarblerParulidae172025+76%1997
Purple FinchFringillidae132025+112%1997
Golden-crowned KingletRegulidae112025+208%1997
Olive-sided FlycatcherTyrannidae102025-7%1997
Western Wood-PeweeTyrannidae102025+110%1997
Black-capped ChickadeeParidae92025+267%1997
Warbling VireoVireonidae92025+144%1998
Canada GooseAnatidae92000n/an/a
Eurasian Collared-DoveColumbidae92025+133%2019
Bewick's WrenTroglodytidae82025-27%1997
BushtitAegithalidae82024+188%2001
Common RavenCorvidae82025+183%2003
Chipping SparrowPasserellidae82025+700%2022
Brown-headed CowbirdIcteridae72025-49%1997
Willow FlycatcherTyrannidae62025-10%1997
Western TanagerCardinalidae62025-58%1997
Orange-crowned WarblerParulidae62025-27%1997
House SparrowPasseridae62025-6%1997
Red-winged BlackbirdIcteridae52025+63%1998
Purple MartinHirundinidae52021+100%2016
Ring-necked PheasantPhasianidae42006-21%1997
Band-tailed PigeonColumbidae42025-10%1997
Downy WoodpeckerPicidae42025+83%1998
European StarlingSturnidae42025-13%1997
Steller's JayCorvidae32024-41%1997

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