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

American Crow Population Trend in Vermont

All statesGeneralists

American Crow in Vermont has held roughly steady: down 7% on the route-weighted index since 1968.

-7%Since 1968TrendPercent 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 →
26Routes 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 →
59YearsYears 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 VermontNotable 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 Vermont. See the full index history below.

American Crow Population Forecast in Vermont

If the recent trend holds, American Crow in Vermont is projected to rise about 21% by 2030 — from 25 in 2025 to a central estimate of 30 (95% range 23–38). A 5-year backtest shows a typical error of ±8.8%, with 100% of held-out values landing inside the 95% band.

+21%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 →
30Projected 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 →
23–3895% 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 →
±8.8%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 Vermont is projected to rise about 21% by 2030 — from 25 in 2025 to a central estimate of 30 (95% range 23–38). A 5-year backtest shows a typical error of ±8.8%, with 100% of held-out values landing inside the 95% band.19662030
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 →
2026302337
2027302337
2028302337
2029302337
2030302338

American Crow Survey Routes in Vermont

Routes recording American Crow in Vermont.
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 →
Hardwick6620241966
North Pownal5120251966
Fletcher4920251968
East Haven4620251966
S Wallingfrd3420221966
S Reading3120241966
Hinesburg3119941966
Grand Isle3120251967
Stowe3120241988
Gaysville2920251966
St Johnsbury2620251970
Colchester2620251986
Bristol2620251995
Waterville2419801967
Shaftsbury2320251966
W Rutland2220251966
Middlesex2220251968
Greensboro2220251967
Post Mills2120251966
Northfld Fls1920251980
Landgrove1620251966
Newbury 21520232005
Newbury1420041986
East Calais1020251966
Marlboro620251966

American Crow Population Trend in Other States

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

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