BirdAnalyst
Species · Washington · BBS 2025 Release · 1966–2024

American Crow Population Trend in Washington

All statesGeneralists

American Crow in Washington has declined: down 46% on the route-weighted index since 1970.

-46%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 →
56YearsYears 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 fall about 17% by 2029 — from 11 in 2024 to a central estimate of 9.4 (95% range 3.8–15). A 5-year backtest shows a typical error of ±10%, with 100% of held-out values landing inside the 95% band.

-17%Change by 2029TrendPercent 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 →
9.4Projected 2029 indexProjected indexThe central forecast of the abundance index if the recent trend continues. A projection of the current trajectory, not a prediction.Full methodology →
3.8–1595% 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 →
±10%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 fall about 17% by 2029 — from 11 in 2024 to a central estimate of 9.4 (95% range 3.8–15). A 5-year backtest shows a typical error of ±10%, with 100% of held-out values landing inside the 95% band.19682029
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 →
2025104.616
2026104.416
20279.94.216
20289.64.015
20299.43.815

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 →
Taholah7220221969
South Elma6620241975
Mendota6419881977
Mukilteo6320241993
Carnation5920241988
Mendota 25020001989
Port Angeles4620241970
Ilwaco4120241975
Issaquah3419871969
Everett3320241975
Camas3220181971
Nighthawk3220241992
Raymond 22920242022
Kendall2720241981
Montesand2620241986
Mcchord2620151996
Twisp2420241969
Index2419711968
Raymond2420211993
Rainier2320191993
Snowden2220241971
Bunker Hill1920241968
Ronald1720241973
Leavenworth1720241981
Vashon Is.1620241995

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 2026-05-22.