BirdAnalyst
BBS Route · Washington · BCR 9

Ardenvoir Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 97 species recorded across 12 survey years, no longer active.

97Species 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 →
12Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1968–1987Span
3Observers

Bird Species Found on Washington Ardenvoir

Top 40 of 97 species by most recent count. Each links to its species trend.

Species recorded on the Ardenvoir 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 RobinTurdidae301987-40%1970
Spotted TowheePasserellidae241987+148%1970
Brown-headed CowbirdIcteridae231987+308%1971
VeeryTurdidae191987+111%1970
Yellow WarblerParulidae171987+300%1972
Black-headed GrosbeakCardinalidae151987+208%1972
Western Wood-PeweeTyrannidae141987+178%1970
Western TanagerCardinalidae131987+580%1973
Brewer's BlackbirdIcteridae121987-75%1970
House FinchFringillidae121987+100%1973
Purple FinchFringillidae111972+357%1969
Chipping SparrowPasserellidae111987+413%1970
Cliff SwallowHirundinidae111987+100%1971
Cassin's FinchFringillidae111987+33%1982
Dusky FlycatcherTyrannidae101987+900%1973
Song SparrowPasserellidae91987+340%1970
Mourning DoveColumbidae81987-68%1970
Barn SwallowHirundinidae81987+350%1971
White-breasted NuthatchSittidae81969n/an/a
Ring-billed GullLaridae71986+167%1983
Warbling VireoVireonidae71987+250%1983
Willow FlycatcherTyrannidae61987-26%1970
Cedar WaxwingBombycillidae61987+38%1983
Steller's JayCorvidae51986+22%1970
Western MeadowlarkIcteridae51987+30%1970
House SparrowPasseridae51987-47%1970
Red-tailed HawkAccipitridae41985+150%1969
Western KingbirdTyrannidae41987-23%1970
Black-billed MagpieCorvidae41987+71%1970
Northern Rough-winged SwallowHirundinidae41987-67%1970
Marsh WrenTroglodytidae41968n/an/a
Black-capped ChickadeeParidae41987-50%1970
Sharp-tailed GrousePhasianidae41969n/an/a
Mountain ChickadeeParidae41987-11%1973
Hairy WoodpeckerPicidae31973-20%1970
Common NighthawkCaprimulgidae31987+200%1969
Say's PhoebeTyrannidae31986+100%1971
Bullock's OrioleIcteridae31987+7%1970
Yellow-breasted ChatIcteriidae31987-23%1970
European StarlingSturnidae31987-29%1971

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