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

Hooded Warbler In Prairie Hardwood Transition

All regionsPrairie Hardwood TransitionForest birds

Hooded Warbler in Prairie Hardwood Transition has surged: up 114% on the route-weighted index since 1984.

+114%Since 1984TrendPercent 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 →
30Routes 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 →
40YearsYears 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 Hooded Warbler in Prairie Hardwood Transition. See the full index history below.

Hooded Warbler In Prairie Hardwood Transition Population Forecast

If the recent trend holds, Hooded Warbler in Prairie Hardwood Transition is projected to stay roughly flat through 2029, near 0.06 (95% range 0.00–0.13). A 5-year backtest shows a typical error of ±241.1%, with 100% of held-out values landing inside the 95% band.

n/aChange 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 →
0.06Projected 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 →
0.00–0.1395% 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 →
±241.1%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, Hooded Warbler in Prairie Hardwood Transition is projected to stay roughly flat through 2029, near 0.06 (95% range 0.00–0.13). A 5-year backtest shows a typical error of ±241.1%, with 100% of held-out values landing inside the 95% band.19752029
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 →
20250.060.000.13
20260.060.000.13
20270.060.000.13
20280.060.000.13
20290.060.000.13

Routes In Prairie Hardwood Transition

Routes recording Hooded Warbler in Prairie 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 →
MontereyMICHIGAN22024
Allegan WmaMICHIGAN22012
PackertownINDIANA12004
EllisINDIANA11998
LakevilleINDIANA12024
Packertown 2INDIANA12005
Indiana DuneINDIANA12019
LawrenceMICHIGAN12001
BravoMICHIGAN12023
NashvilleMICHIGAN12019
HowardsvilleMICHIGAN12022
MottvilleMICHIGAN11997
HomerMICHIGAN12010
DeckervilleMICHIGAN12013
CohoctahMICHIGAN12022
Belding 2MICHIGAN12016
LapeerMICHIGAN12024
New BuffaloMICHIGAN12010
AlmenaMICHIGAN12014
Barry S.G.A.MICHIGAN12008
BismarkOHIO11984
DresserWISCONSIN12002
LoraineWISCONSIN12015
CumberlandWISCONSIN12009
EsdaileWISCONSIN12005

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