BirdAnalyst
BBS Route · Washington · BCR 9

Asotin Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 116 species recorded across 40 survey years, still active.

116Species 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 →
40Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1971–2025Span
5Observers

Bird Species Found on Washington Asotin

Top 40 of 116 species by most recent count. Each links to its species trend.

Species recorded on the Asotin 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
Horned LarkAlaudidae812025+35%1983
Brewer's BlackbirdIcteridae712025+28%1983
Western MeadowlarkIcteridae462025-45%1982
House SparrowPasseridae282025-36%1983
Savannah SparrowPasserellidae272025+531%1985
European StarlingSturnidae222025+1%1983
Mourning DoveColumbidae162025-57%1982
Black-billed MagpieCorvidae162025+22%1982
Red-winged BlackbirdIcteridae142025-52%1985
Rock PigeonColumbidae142025+238%1983
Common RavenCorvidae14202511×1987
American RobinTurdidae132025-49%1982
ChukarPhasianidae102025+94%1983
Western KingbirdTyrannidae102025+125%1982
Mountain BluebirdTurdidae102025+200%1991
Ring-necked PheasantPhasianidae82025-60%1982
House FinchFringillidae82025-5%1985
Tree SwallowHirundinidae82025+180%2007
Song SparrowPasserellidae62025-78%1982
Red-tailed HawkAccipitridae62025+420%1983
Common NighthawkCaprimulgidae62025+0%1985
Yellow-headed BlackbirdIcteridae62024+400%2019
Bullock's OrioleIcteridae62025+220%1986
Vesper SparrowPasserellidae52025-15%1984
Barn SwallowHirundinidae52025-40%1982
Western Wood-PeweeTyrannidae52025+200%1984
Say's PhoebeTyrannidae52025+8%1985
MallardAnatidae52022+0%2002
Vaux's SwiftApodidae51998n/an/a
Chipping SparrowPasserellidae42025-92%1982
Brewer's SparrowPasserellidae42014-96%1982
White-breasted NuthatchSittidae41971n/an/a
Wilson's SnipeScolopacidae42024+100%1983
American KestrelFalconidae42025-27%1983
Grasshopper SparrowPasserellidae42025+0%1984
KilldeerCharadriidae32025+18%1982
Rock WrenTroglodytidae32025-58%1986
Northern Rough-winged SwallowHirundinidae32022-97%1983
Warbling VireoVireonidae32019+100%1988
Western TanagerCardinalidae32025+133%1988

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