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Species · Alaska · BBS 2025 Release · 1966–2024

American Crow Population Trend in Alaska

All statesGeneralists

American Crow in Alaska has declined: down 39% on the route-weighted index since 1973.

-39%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 →
47YearsYears 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 2029 — from 4.9 in 2024 to a central estimate of 4.2 (95% range 0.00–8.7). A 5-year backtest shows a typical error of ±7.7%, with 100% of held-out values landing inside the 95% band.

-15%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 →
4.2Projected 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 →
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 →
±7.7%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 2029 — from 4.9 in 2024 to a central estimate of 4.2 (95% range 0.00–8.7). A 5-year backtest shows a typical error of ±7.7%, with 100% of held-out values landing inside the 95% band.19712029
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 →
20254.40.008.9
20264.40.008.9
20274.30.008.8
20284.30.008.8
20294.20.008.7

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 Strt8020241988
Sitka (Short)7119921984
Haines3720241972
Juneau Alt3319861984
Zarembo3220241993
Juneau3120241983
Ketchikan2720221971
Whale Pass2520241997
Kachemak2220241986
Sitka2220241993
Cordova2120241983
Skagway1820241993
Hyder1720091994
Thorne Bay 21520242013
Yakutat920241993
Kalifonsky820221982
Chichagof Is720191994
Hoonah620211993
Petersburg619871987
Craig520241983
Kodiak 2520241985
Thorne Bay520121989
Homer419821982
Mitkof Isle420241988
Hope320142014

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 2026-05-22.