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

Brown Creeper In Prairie Hardwood Transition

All regionsPrairie Hardwood TransitionForest birds

Brown Creeper in Prairie Hardwood Transition has surged: up 162% on the route-weighted index since 1978.

+162%Since 1978TrendPercent 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 →
29Routes 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 →
33YearsYears 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 Brown Creeper in Prairie Hardwood Transition. See the full index history below.

Brown Creeper In Prairie Hardwood Transition Population Forecast

If the recent trend holds, Brown Creeper in Prairie Hardwood Transition is projected to stay roughly flat through 2029, near 0.03 (95% range 0.01–0.05). A 5-year backtest shows a typical error of ±24.5%, with 80% 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 →
0.03Projected 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 →
0.01–0.0595% 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 →
±24.5%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, Brown Creeper in Prairie Hardwood Transition is projected to stay roughly flat through 2029, near 0.03 (95% range 0.01–0.05). A 5-year backtest shows a typical error of ±24.5%, with 80% of held-out values landing inside the 95% band.19672029
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 →
20250.030.010.04
20260.030.010.04
20270.030.010.04
20280.030.010.04
20290.030.010.05

Routes In Prairie Hardwood Transition

Routes recording Brown Creeper 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 →
ScottvilleMICHIGAN12022
Big Blue LkMICHIGAN12024
BravoMICHIGAN12009
NashvilleMICHIGAN11984
MontereyMICHIGAN12023
RemusMICHIGAN12023
St CharlesMICHIGAN11990
HomerMICHIGAN11998
North BranchMICHIGAN11999
DeckervilleMICHIGAN12000
HungerfordMICHIGAN12024
Chippewa Lk.MICHIGAN12024
AlmenaMICHIGAN12005
Barry S.G.A. 2MICHIGAN12014
EvergreenMINNESOTA12022
LoraineWISCONSIN11967
WeyerhauserWISCONSIN12019
MerrillWISCONSIN12023
EsdaileWISCONSIN11997
TrempealeauWISCONSIN11984
MatherWISCONSIN12010
SaxevilleWISCONSIN12024
ManawaWISCONSIN11993
Oconto FallsWISCONSIN12013
ClintonvilleWISCONSIN11987

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