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Species · Alaska · BBS 2026 Release · 1966–2025

American Crow Population Trend in Alaska

All statesGeneralists

American Crow in Alaska has declined: down 37% on the route-weighted index since 1973.

-37%Since 1973TrendPercent 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 →
33Routes 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 →
48YearsYears 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 AlaskaNotable 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 Alaska. See the full index history below.

American Crow Population Forecast in Alaska

If the recent trend holds, American Crow in Alaska is projected to fall about 15% by 2030 — from 4.9 in 2025 to a central estimate of 4.2 (95% range 0.00–8.7). A 5-year backtest shows a typical error of ±7.8%, with 100% of held-out values landing inside the 95% band.

-15%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 →
4.2Projected 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 →
0.00–8.795% 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 →
±7.8%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 Alaska is projected to fall about 15% by 2030 — from 4.9 in 2025 to a central estimate of 4.2 (95% range 0.00–8.7). A 5-year backtest shows a typical error of ±7.8%, with 100% of held-out values landing inside the 95% band.19712030
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 →
20264.40.008.9
20274.30.008.8
20284.30.008.8
20294.20.008.7
20304.20.008.7

American Crow Survey Routes in Alaska

Routes recording American Crow in Alaska.
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 →
Zimovia Strt8320251988
Sitka (Short)7119921984
Haines6920251972
Skagway3420251993
Juneau Alt3319861984
Zarembo3220241993
Kachemak3120251986
Ketchikan2720221971
Whale Pass2520241997
Juneau2320251983
Sitka2220241993
Cordova2120241983
Thorne Bay 21920252013
Hyder1720091994
Kodiak 2920251985
Chichagof Is720191994
Yakutat720251993
Hoonah620211993
Petersburg619871987
Thorne Bay520121989
Homer419821982
Kalifonsky420251982
Hope320142014
Mitkof Isle320251988
Anchor River320241992

American Crow Population Trend in Other States

alabamaarizonaarkansascaliforniacoloradoconnecticutdelawarefloridageorgiaidahoillinoisindianaiowakansaskentuckylouisianamainemarylandmassachusettsmichiganminnesotamississippimissourimontananebraskanevadanew-hampshirenew-jerseynew-mexiconew-yorknorth-carolinanorth-dakotaohiooklahomaoregonpennsylvaniarhode-islandsouth-carolinasouth-dakotatennesseetexasutahvermontvirginiawashingtonwest-virginiawisconsinwyoming

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