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

American Goshawk In Atlantic Northern Forest

All regionsAtlantic Northern ForestGeneralists

American Goshawk in Atlantic Northern Forest has edged down: down 10% on the route-weighted index since 1970.

-10%Since 1970TrendPercent 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 →
43Routes 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 →
36YearsYears 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 Goshawk in Atlantic Northern Forest. See the full index history below.

American Goshawk In Atlantic Northern Forest Population Forecast

If the recent trend holds, American Goshawk in Atlantic Northern Forest is projected to stay roughly flat through 2024, near 0.02 (95% range 0.00–0.05). A 5-year backtest shows a typical error of ±47.2%, with 100% of held-out values landing inside the 95% band.

n/aChange by 2024TrendPercent 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 →
0.02Projected 2024 indexProjected indexThe central forecast of the abundance index if the recent trend continues. A projection of the current trajectory, not a prediction.Full methodology →
0.00–0.0595% 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 →
±47.2%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, American Goshawk in Atlantic Northern Forest is projected to stay roughly flat through 2024, near 0.02 (95% range 0.00–0.05). A 5-year backtest shows a typical error of ±47.2%, with 100% of held-out values landing inside the 95% band.19682024
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 →
20200.020.000.05
20210.020.000.05
20220.020.000.05
20230.020.000.05
20240.020.000.05

Routes In Atlantic Northern Forest

Routes recording American Goshawk 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 →
New HartfordCONNECTICUT11994
Wilson MillsMAINE12013
BethelMAINE11988
ReedsMAINE12007
South ArmMAINE11990
HartfordMAINE11981
Bowdoin CtrMAINE11999
EastbrookMAINE12017
Carrying PlMAINE12009
CharlestonMAINE12005
GreenvilleMAINE12017
MedwayMAINE11979
Clayton LakeMAINE11985
RomeMAINE12001
JeffersonMAINE11996
Heron LakeMAINE11983
N OrangeMASSACHUSETTS11976
CummingtonMASSACHUSETTS12008
ChesterfieldMASSACHUSETTS12007
PeterboroughNEW-HAMPSHIRE12008
HopkintonNEW-HAMPSHIRE12013
Gilmantn I WNEW-HAMPSHIRE12002
WalpoleNEW-HAMPSHIRE11968
Jefferson HlNEW-HAMPSHIRE12019
StratfordNEW-HAMPSHIRE12010

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