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

Red-shouldered Hawk In Atlantic Northern Forest

All regionsAtlantic Northern ForestBirds of prey

Red-shouldered Hawk in Atlantic Northern Forest has surged: up 130% on the route-weighted index since 1968.

+130%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 →
75Routes 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 →
55YearsYears 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 Red-shouldered Hawk in Atlantic Northern Forest. See the full index history below.

Red-shouldered Hawk In Atlantic Northern Forest Population Forecast

If the recent trend holds, Red-shouldered Hawk in Atlantic Northern Forest is projected to stay roughly flat through 2030, near 0.08 (95% range 0.00–0.16). A 5-year backtest shows a typical error of ±58.9%, with 40% of held-out values landing inside the 95% band.

-2%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 →
0.08Projected 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 →
0.00–0.1695% 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 →
±58.9%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, Red-shouldered Hawk in Atlantic Northern Forest is projected to stay roughly flat through 2030, near 0.08 (95% range 0.00–0.16). A 5-year backtest shows a typical error of ±58.9%, with 40% 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 →
20260.080.000.16
20270.080.000.16
20280.080.000.16
20290.080.000.16
20300.080.000.16

Routes In Atlantic Northern Forest

Routes recording Red-shouldered Hawk 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 →
ManchesterMAINE41973
HarmonyMAINE32021
SheffieldMASSACHUSETTS32013
East TroyMAINE22021
AuroraMAINE22021
Carrying PlMAINE22001
CharlestonMAINE22014
ChesterfieldMASSACHUSETTS22025
HopkintonNEW-HAMPSHIRE22024
NewcombNEW-YORK21993
North RiverNEW-YORK21979
S ReadingVERMONT22022
MiddlesexVERMONT22010
Newbury 2VERMONT22021
New HartfordCONNECTICUT12024
Wilson MillsMAINE11984
TurnerMAINE11973
GreenwoodMAINE12017
ReedsMAINE12025
South ArmMAINE11999
Bowdoin CtrMAINE12011
FreedomMAINE11996
BentonMAINE11971
NorthfieldMAINE11977
CambridgeMAINE11976

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