BirdAnalyst
Species · BCR 12 · BBS 2025 Release · 1966–2024

Red-tailed Hawk In Boreal Hardwood Transition

All regionsBoreal Hardwood TransitionGeneralists

Red-tailed Hawk in Boreal Hardwood Transition has increased: up 25% on the route-weighted index since 1968.

+25%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 →
107Routes 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 Red-tailed Hawk in Boreal Hardwood Transition. See the full index history below.

Red-tailed Hawk In Boreal Hardwood Transition Population Forecast

If the recent trend holds, Red-tailed Hawk in Boreal Hardwood Transition is projected to rise about 144% by 2029 — from 0.11 in 2024 to a central estimate of 0.26 (95% range 0.07–0.46). A 5-year backtest shows a typical error of ±126.5%, with 60% of held-out values landing inside the 95% band.

+144%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 →
0.26Projected 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 →
0.07–0.4695% 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 →
±126.5%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 Boreal Hardwood Transition is projected to rise about 144% by 2029 — from 0.11 in 2024 to a central estimate of 0.26 (95% range 0.07–0.46). A 5-year backtest shows a typical error of ±126.5%, with 60% 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 →
20250.260.060.45
20260.260.060.46
20270.260.060.46
20280.260.060.46
20290.260.070.46

Routes In Boreal Hardwood Transition

Routes recording Red-tailed Hawk in Boreal Hardwood Transition.
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 →
BootjackMICHIGAN62016
WarroadMINNESOTA32022
ExelandWISCONSIN32021
CunardMICHIGAN22016
Lake CityMICHIGAN22015
Traverse CtyMICHIGAN21992
RacoMICHIGAN21990
RiggsvilleMICHIGAN22018
FredericMICHIGAN21995
Red OakMICHIGAN21995
Pleasant Valley 2MICHIGAN22024
Walloon Lake 2MICHIGAN22009
BackusMINNESOTA22019
WaskishMINNESOTA22021
GlendaleMINNESOTA22021
BashawWISCONSIN22024
OntonagonMICHIGAN11985
MareniscoMICHIGAN12012
Ned LakeMICHIGAN12009
HermanMICHIGAN11997
Crystal FlsMICHIGAN12014
Maple GroveMICHIGAN12004
Brocky LakeMICHIGAN12018
WilsonMICHIGAN12004
ShingletonMICHIGAN12023

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