BirdAnalyst
Species · BCR 23 · BBS 2026 Release · 1966–2025

Rose-breasted Grosbeak In Prairie Hardwood Transition

All regionsPrairie Hardwood TransitionForest birds

Rose-breasted Grosbeak in Prairie Hardwood Transition has increased: up 28% on the route-weighted index since 1968.

+28%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 →
159Routes 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 →
59YearsYears 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 Rose-breasted Grosbeak in Prairie Hardwood Transition. See the full index history below.

Rose-breasted Grosbeak In Prairie Hardwood Transition Population Forecast

If the recent trend holds, Rose-breasted Grosbeak in Prairie Hardwood Transition is projected to stay roughly flat through 2030, near 5.3 (95% range 3.9–6.8). A 5-year backtest shows a typical error of ±7.6%, with 100% of held-out values landing inside the 95% band.

-9%Change by 2030TrendPercent 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 →
5.3Projected 2030 indexProjected indexThe central forecast of the abundance index if the recent trend continues. A projection of the current trajectory, not a prediction.Full methodology →
3.9–6.895% 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 →
±7.6%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, Rose-breasted Grosbeak in Prairie Hardwood Transition is projected to stay roughly flat through 2030, near 5.3 (95% range 3.9–6.8). A 5-year backtest shows a typical error of ±7.6%, with 100% of held-out values landing inside the 95% band.19662030
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 →
20265.43.96.8
20275.33.96.8
20285.33.96.8
20295.33.96.8
20305.33.96.8

Routes In Prairie Hardwood Transition

Routes recording Rose-breasted Grosbeak 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 →
StetsonvilleWISCONSIN212025
WeyerhauserWISCONSIN202025
HolwayWISCONSIN191989
Sherburne NrMINNESOTA182025
Chatfield 2MINNESOTA162025
MerrillWISCONSIN162025
GilmantonWISCONSIN162025
RichmondMICHIGAN152024
Chippewa Lk.MICHIGAN152025
ViroquaWISCONSIN152024
Prairie Du ChienWISCONSIN142025
GuilfordILLINOIS132023
Big RapidsMICHIGAN131990
Barry S.G.A.MICHIGAN132012
New LisbonWISCONSIN132025
N AndoverWISCONSIN132025
Buena VistaWISCONSIN132025
WhitewaterMINNESOTA122000
DresserWISCONSIN122025
BriggsvilleWISCONSIN122025
AshbyMINNESOTA112021
StratfordWISCONSIN112025
SaxevilleWISCONSIN112025
N FreedomWISCONSIN112025
HungerfordMICHIGAN102025

Source: USGS North American Breeding Bird Survey, retrieved 2026-08-14.