BirdAnalyst
Species · Washington · BBS 2026 Release · 1966–2025

American Crow Population Trend in Washington

All statesGeneralists

American Crow in Washington has declined: down 48% on the route-weighted index since 1970.

-48%Since 1970TrendPercent 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 →
103Routes In StateSurvey routesHow many standard-protocol BBS routes contributed counts. More routes means a steadier, better-sampled index; very thin coverage is suppressed.Full methodology →
57YearsYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →

Notable American Crow Trends in WashingtonNotable signalsLong-arc shifts the engine flags automatically — sustained declines or increases large enough to stand out from year-to-year noise.Full methodology →

No notable trend signals for American Crow in Washington. See the full index history below.

American Crow Population Forecast in Washington

If the recent trend holds, American Crow in Washington is projected to stay roughly flat through 2030, near 9.2 (95% range 3.6–15). A 5-year backtest shows a typical error of ±6.1%, with 100% of held-out values landing inside the 95% band.

-7%Change by 2030TrendPercent 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 →
9.2Projected 2030 indexProjected indexThe central forecast of the abundance index if the recent trend continues. A projection of the current trajectory, not a prediction.Full methodology →
3.6–1595% range95% rangeThe 95% uncertainty band around the projection at the forecast horizon. The true value should land inside it most of the time.Full methodology →
±6.1%Backtest errorBacktest errorTypical error when we hold out the most recent years, forecast them, and compare to what actually happened. Lower means a more trustworthy projection.Full methodology →
If the recent trend holds, American Crow in Washington is projected to stay roughly flat through 2030, near 9.2 (95% range 3.6–15). A 5-year backtest shows a typical error of ±6.1%, with 100% of held-out values landing inside the 95% band.19682030
Projection of the recent trend (dashed) with 80/95% bands — a projection, not a prediction. Habitat, climate, and land use are not modeled.
YearProjected indexProjected indexThe central forecast of the abundance index if the recent trend continues. A projection of the current trajectory, not a prediction.Full methodology →95% low95% rangeThe 95% uncertainty band around the projection at the forecast horizon. The true value should land inside it most of the time.Full methodology →95% high95% rangeThe 95% uncertainty band around the projection at the forecast horizon. The true value should land inside it most of the time.Full methodology →
2026104.416
20279.84.215
20289.64.015
20299.43.815
20309.23.615

American Crow Survey Routes in Washington

Routes recording American Crow in Washington.
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 →
Port Angeles7220251970
Taholah7220221969
South Elma6620241975
Mendota6419881977
Mendota 25020001989
Carnation4520251988
Mukilteo4320251993
Ilwaco3920251975
Issaquah3419871969
Everett3420251975
Camas3220181971
Vashon Is.3120251995
Raymond 22920242022
Rainier2820251993
Montesand2620241986
Mcchord2620151996
Twisp2420241969
Index2419711968
Raymond2420211993
Nighthawk1920251992
Leavenworth1720241981
Scootney Reservoir1520252009
Warm Beach1420171968
Snowden1420251971
Concrete1420252013

American Crow Population Trend in Other States

alabamaalaskaarizonaarkansascaliforniacoloradoconnecticutdelawarefloridageorgiaidahoillinoisindianaiowakansaskentuckylouisianamainemarylandmassachusettsmichiganminnesotamississippimissourimontananebraskanevadanew-hampshirenew-jerseynew-mexiconew-yorknorth-carolinanorth-dakotaohiooklahomaoregonpennsylvaniarhode-islandsouth-carolinasouth-dakotatennesseetexasutahvermontvirginiawest-virginiawisconsinwyoming

Source: USGS North American Breeding Bird Survey, retrieved 2026-08-14.