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

Pine Warbler In Prairie Hardwood Transition

All regionsPrairie Hardwood TransitionForest birds

Pine Warbler in Prairie Hardwood Transition has surged: up 14× on the route-weighted index since 1969.

14×Since 1969
53Routes In Region
57Years

Notable Signals

long arc increasecomputed index

Pine Warbler has surged in Prairie Hardwood Transition: up 14× on the route-weighted index since 1969.

Forecast

If the recent trend holds, Pine Warbler in Prairie Hardwood Transition is projected to stay roughly flat through 2029, near 0.57 (95% range 0.37–0.78). A 5-year backtest shows a typical error of ±22%, with 100% of held-out values landing inside the 95% band.

-6%Change by 2029
0.57Projected 2029 index
0.37–0.7895% range
±22%Backtest error
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 index95% low95% high
20250.540.330.74
20260.550.340.75
20270.550.350.76
20280.560.360.77
20290.570.370.78

Routes In Prairie Hardwood Transition

Routes recording Pine Warbler in Prairie Hardwood Transition.
HatfieldWISCONSIN171998
Pigeon CreekWISCONSIN132024
CumberlandWISCONSIN92024
MatherWISCONSIN82023
CadottWISCONSIN72024
EvergreenMINNESOTA62024
Oconto FallsWISCONSIN62019
Big Blue LkMICHIGAN42024
MontereyMICHIGAN42024
HungerfordMICHIGAN42024
UnityWISCONSIN42024
Stevens PtWISCONSIN32023
GreshamWISCONSIN32024
RemusMICHIGAN22024
LoraineWISCONSIN22021
WeyerhauserWISCONSIN22024
ElderonWISCONSIN22021
ScottvilleMICHIGAN12024
BravoMICHIGAN12023
New TroyMICHIGAN12023
Big RapidsMICHIGAN11989
NashvilleMICHIGAN12023
GalesburgMICHIGAN12023
OlaMICHIGAN12013
HomerMICHIGAN12011

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