BirdAnalyst
Species · BCR 30 · BBS 2026 Release · 1966–2025

Common Raven In New England / Mid-Atlantic Coast

All regionsNew England / Mid-Atlantic CoastGeneralists

Common Raven in New England / Mid-Atlantic Coast has surged: up 24× on the route-weighted index since 1991.

24×Since 1991TrendPercent 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 →
46Routes 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 →
34YearsYears 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 Common Raven in New England / Mid-Atlantic Coast. See the full index history below.

Common Raven In New England / Mid-Atlantic Coast Population Forecast

If the recent trend holds, Common Raven in New England / Mid-Atlantic Coast is projected to stay roughly flat through 2030, near 0.42 (95% range 0.25–0.58). A 5-year backtest shows a typical error of ±43%, with 20% of held-out values landing inside the 95% band.

-9%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 →
0.42Projected 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 →
0.25–0.5895% 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 →
±43%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, Common Raven in New England / Mid-Atlantic Coast is projected to stay roughly flat through 2030, near 0.42 (95% range 0.25–0.58). A 5-year backtest shows a typical error of ±43%, with 20% of held-out values landing inside the 95% band.19872030
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 →
20260.370.200.54
20270.380.220.55
20280.390.230.56
20290.410.240.57
20300.420.250.58

Routes In New England / Mid-Atlantic Coast

Routes recording Common Raven in New England / Mid-Atlantic Coast.
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 →
UncasvilleCONNECTICUT92024
Woodstock 2CONNECTICUT62025
JessupMARYLAND52024
StraffordNEW-HAMPSHIRE52024
ShermanCONNECTICUT42019
MansfieldMASSACHUSETTS42025
East KingstonNEW-HAMPSHIRE42025
Casimir Pulaski SfRHODE-ISLAND42018
Warren 2CONNECTICUT32025
LittletonMASSACHUSETTS32025
DoverNEW-HAMPSHIRE32025
HauppaugeNEW-YORK31997
ShannockRHODE-ISLAND32023
BuckinghamCONNECTICUT22022
WestbrookCONNECTICUT22019
Long HillCONNECTICUT22018
PrattvilleMASSACHUSETTS22015
S BarreMASSACHUSETTS22021
N. AndoverMASSACHUSETTS22018
EpsomNEW-HAMPSHIRE22025
FriendshipNEW-JERSEY22024
Quonset PtRHODE-ISLAND22025
Wallum LakeRHODE-ISLAND22018
WillimanticCONNECTICUT12003
No WoodburyCONNECTICUT12025

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