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

Red-tailed Hawk In Atlantic Northern Forest

All regionsAtlantic Northern ForestGeneralists

Red-tailed Hawk in Atlantic Northern Forest has increased: up 36% on the route-weighted index since 1969.

+36%Since 1969TrendPercent 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 →
93Routes 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 →
57YearsYears 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-tailed Hawk in Atlantic Northern Forest. See the full index history below.

Red-tailed Hawk In Atlantic Northern Forest Population Forecast

If the recent trend holds, Red-tailed Hawk in Atlantic Northern Forest is projected to stay roughly flat through 2029, near 0.10 (95% range 0.03–0.18). A 5-year backtest shows a typical error of ±23.2%, with 80% of held-out values landing inside the 95% band.

-10%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 →
0.10Projected 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 →
0.03–0.1895% 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 →
±23.2%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-tailed Hawk in Atlantic Northern Forest is projected to stay roughly flat through 2029, near 0.10 (95% range 0.03–0.18). A 5-year backtest shows a typical error of ±23.2%, with 80% 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 →
20250.100.020.18
20260.100.020.18
20270.100.030.18
20280.100.030.18
20290.100.030.18

Routes In Atlantic Northern Forest

Routes recording Red-tailed 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 →
Big TwentyMAINE32002
Weeks BrookMAINE32002
Moose RiverMAINE21990
CornvilleMAINE22021
Cummington 2MASSACHUSETTS22024
MarlowNEW-HAMPSHIRE22024
Number FourNEW-YORK22016
Blue Ridge NNEW-YORK22006
S ReadingVERMONT22019
S WallingfrdVERMONT22022
New HartfordCONNECTICUT11987
New HartfordCONNECTICUT12016
WestbrookMAINE12010
BiddefordMAINE12003
TurnerMAINE12010
GreenwoodMAINE12023
ReedsMAINE12024
Otisfield GrMAINE12014
HartfordMAINE12022
ManchesterMAINE11993
East TroyMAINE12018
BrooksMAINE12013
CastineMAINE12006
AuroraMAINE11982
Seboomook LkMAINE12001

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