BirdAnalyst
Species · North Dakota · BBS 2025 Release · 1966–2024

American Crow Population Trend in North Dakota

All statesGeneralists

American Crow in North Dakota has declined: down 38% on the route-weighted index since 1969.

-38%Since 1969TrendPercent 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 →
50Routes 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 North DakotaNotable 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 North Dakota. See the full index history below.

American Crow Population Forecast in North Dakota

If the recent trend holds, American Crow in North Dakota is projected to rise about 155% by 2029 — from 3.5 in 2024 to a central estimate of 9.0 (95% range 1.3–17). A 5-year backtest shows a typical error of ±164.8%, with 80% of held-out values landing inside the 95% band.

+155%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 →
9.0Projected 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 →
1.3–1795% 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 →
±164.8%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 North Dakota is projected to rise about 155% by 2029 — from 3.5 in 2024 to a central estimate of 9.0 (95% range 1.3–17). A 5-year backtest shows a typical error of ±164.8%, with 80% of held-out values landing inside the 95% band.19672029
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 →
20259.01.317
20269.01.317
20279.01.317
20289.01.317
20299.01.317

American Crow Survey Routes in North Dakota

Routes recording American Crow in North Dakota.
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 →
Emerado3720241973
Turtle Mtns3620241980
Kempton3220171967
Nash2620171980
Abercrombie2020121967
Roosevelt Pk1820191982
Bowesmont 21520162015
Sydney919831967
Stanley720241967
Powers Lake720231980
Abercrombie 2720172013
Cooperstown620241969
Webster620211989
Tobacco620191968
Denbigh620241968
Walcott520231967
Carpio520231967
Carson520221990
Loraine420191983
Gorham420181968
Horsehead Lk320021989
Bowesmont320141968
Rolla320241969
Lark319811968
Braddock320161988

American Crow Population Trend in Other States

alabamaalaskaarizonaarkansascaliforniacoloradoconnecticutdelawarefloridageorgiaidahoillinoisindianaiowakansaskentuckylouisianamainemarylandmassachusettsmichiganminnesotamississippimissourimontananebraskanevadanew-hampshirenew-jerseynew-mexiconew-yorknorth-carolinaohiooklahomaoregonpennsylvaniarhode-islandsouth-carolinasouth-dakotatennesseetexasutahvermontvirginiawashingtonwest-virginiawisconsinwyoming

Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.