BirdAnalyst
Species · BCR 23 · BBS 2025 Release · 1966–2024

Bald Eagle In Prairie Hardwood Transition

All regionsPrairie Hardwood TransitionGeneralists

Bald Eagle in Prairie Hardwood Transition has surged: up 44× on the route-weighted index since 1983.

44×Since 1983
99Routes In Region
41Years

Notable Signals

long arc increasecomputed index

Bald Eagle has surged in Prairie Hardwood Transition: up 44× on the route-weighted index since 1983.

Forecast

If the recent trend holds, Bald Eagle in Prairie Hardwood Transition is projected to fall about 18% by 2029 — from 0.56 in 2024 to a central estimate of 0.46 (95% range 0.34–0.58). A 5-year backtest shows a typical error of ±21.9%, with 40% of held-out values landing inside the 95% band.

-18%Change by 2029
0.46Projected 2029 index
0.34–0.5895% range
±21.9%Backtest error
19712029
Projection of the recent trend (dashed) with 80/95% bands — a projection, not a prediction. Habitat, climate, and land use are not modeled.
YearProjected index95% low95% high
20250.420.290.54
20260.430.300.55
20270.440.310.56
20280.450.330.57
20290.460.340.58

Routes In Prairie Hardwood Transition

Routes recording Bald Eagle in Prairie Hardwood Transition.
Sherburne NrMINNESOTA62024
CochraneWISCONSIN42024
OmroWISCONSIN41996
MerrillWISCONSIN32024
MatherWISCONSIN32023
CascoWISCONSIN32024
Rolling GrndWISCONSIN32024
GuilfordILLINOIS22023
Cherry Val 2ILLINOIS22013
FestinaIOWA22024
Maple RapidsMICHIGAN22023
MillvilleMINNESOTA22018
MinnetonkaMINNESOTA22024
PrincetonMINNESOTA22024
St StephenMINNESOTA22006
EdwardsMINNESOTA22023
Le CenterMINNESOTA22023
AshbyMINNESOTA22014
KingswayOHIO22022
HudsonWISCONSIN22024
DresserWISCONSIN22024
LoraineWISCONSIN22018
TrempealeauWISCONSIN22024
Wis RapidsWISCONSIN22023
ManawaWISCONSIN22016

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