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

Blue-winged Warbler In Prairie Hardwood Transition

All regionsPrairie Hardwood TransitionForest birds

Blue-winged Warbler in Prairie Hardwood Transition has surged: up 376% on the route-weighted index since 1968.

+376%Since 1968
111Routes In Region
58Years

Notable Signals

long arc increasecomputed index

Blue-winged Warbler has surged in Prairie Hardwood Transition: up 376% on the route-weighted index since 1968.

Forecast

If the recent trend holds, Blue-winged Warbler in Prairie Hardwood Transition is projected to stay roughly flat through 2029, near 0.70 (95% range 0.49–0.91). A 5-year backtest shows a typical error of ±3.7%, with 100% of held-out values landing inside the 95% band.

+6%Change by 2029
0.70Projected 2029 index
0.49–0.9195% range
±3.7%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
20250.670.460.87
20260.680.470.88
20270.680.480.89
20280.690.480.90
20290.700.490.91

Routes In Prairie Hardwood Transition

Routes recording Blue-winged Warbler in Prairie Hardwood Transition.
MontereyMICHIGAN92023
Pigeon CreekWISCONSIN92024
Caledonia 2MINNESOTA82024
GilmantonWISCONSIN72024
MatherWISCONSIN72023
N FreedomWISCONSIN72024
Barry S.G.A.MICHIGAN62012
AlmenaMICHIGAN42014
CaledoniaMINNESOTA42009
CumberlandWISCONSIN42024
CochraneWISCONSIN42022
CadottWISCONSIN42024
ClintonvilleWISCONSIN42016
BravoMICHIGAN32023
NashvilleMICHIGAN32023
RichmondMICHIGAN32010
Chippewa Lk.MICHIGAN32023
Chatfield 2MINNESOTA32024
WhitewaterMINNESOTA32000
EsdaileWISCONSIN32024
ViroquaWISCONSIN32024
Prairie Du ChienWISCONSIN32021
Lake GalenaILLINOIS22021
LawrenceMICHIGAN22004
RemusMICHIGAN22024

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