BirdAnalyst
Species · BCR 14 · BBS 2026 Release · 1966–2025

American Crow In Atlantic Northern Forest

All regionsAtlantic Northern ForestGeneralists

American Crow in Atlantic Northern Forest has increased: up 26% on the route-weighted index since 1968.

+26%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 →
155Routes In RegionSurvey 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 SignalsNotable 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 Atlantic Northern Forest. See the full index history below.

American Crow In Atlantic Northern Forest Population Forecast

If the recent trend holds, American Crow in Atlantic Northern Forest is projected to rise about 51% by 2030 — from 20 in 2025 to a central estimate of 30 (95% range 24–36). A 5-year backtest shows a typical error of ±26.1%, with 60% of held-out values landing inside the 95% band.

+51%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 →
24–3695% 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 →
±26.1%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 Atlantic Northern Forest is projected to rise about 51% by 2030 — from 20 in 2025 to a central estimate of 30 (95% range 24–36). A 5-year backtest shows a typical error of ±26.1%, with 60% 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 →
2026292335
2027292335
2028292336
2029302336
2030302436

Routes In Atlantic Northern Forest

Routes recording American Crow in Atlantic Northern Forest.
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 →
Ft FairfieldMAINE742005
CastineMAINE722006
CheshireMASSACHUSETTS671994
HardwickVERMONT662024
Number FourNEW-YORK582016
AshlandMAINE572008
BoundaryMAINE562016
PittsfieldMASSACHUSETTS512016
ClarksvilleNEW-HAMPSHIRE512025
WashburnMAINE492005
FletcherVERMONT492025
St DavidMAINE482005
ManchesterMAINE471995
East HavenVERMONT462025
WestbrookMAINE452024
Otisfield GrMAINE442015
BentonMAINE431980
East TroyMAINE422021
HarmonyMAINE412025
HancockMAINE412025
DebloisMAINE412007
HudsonMAINE412016
EastbrookMAINE402025
Turner 2MAINE402025
Bowdoin CtrMAINE392021

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