BirdAnalyst
Species · BCR 14 · BBS 2025 Release · 1966–2024

American Crow In Atlantic Northern Forest

All regionsAtlantic Northern ForestGeneralists

American Crow in Atlantic Northern Forest has increased: up 40% on the route-weighted index since 1968.

+40%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 →
58YearsYears 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 13% by 2029 — from 27 in 2024 to a central estimate of 30 (95% range 25–36). A 5-year backtest shows a typical error of ±25.6%, with 40% of held-out values landing inside the 95% band.

+13%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 →
30Projected 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 →
25–3695% 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 →
±25.6%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 13% by 2029 — from 27 in 2024 to a central estimate of 30 (95% range 25–36). A 5-year backtest shows a typical error of ±25.6%, with 40% of held-out values landing inside the 95% band.19662029
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 →
2025302435
2026302435
2027302436
2028302436
2029302536

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
CornvilleMAINE682024
CheshireMASSACHUSETTS671994
HardwickVERMONT662024
Number FourNEW-YORK582016
AshlandMAINE572008
St JohnsburyVERMONT572024
BoundaryMAINE562016
GreensboroVERMONT522024
PittsfieldMASSACHUSETTS512016
WashburnMAINE492005
St DavidMAINE482005
ChesterfieldMASSACHUSETTS482024
ManchesterMAINE471995
HarmonyMAINE462024
HermonMAINE462019
WestbrookMAINE452024
HancockMAINE452024
Turner 2MAINE452024
Otisfield GrMAINE442015
BentonMAINE431980
MiddlesexVERMONT432024
FletcherVERMONT432024
EastbrookMAINE422024

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