BirdAnalyst
Species · Wisconsin · BBS 2025 Release · 1966–2024

Brown Creeper Population Trend in Wisconsin

All statesForest birds

Brown Creeper in Wisconsin has surged: up 180% on the route-weighted index since 1969.

+180%Since 1969
39Routes In State
57Years

Notable Brown Creeper Trends in Wisconsin

long arc increasecomputed index

Brown Creeper has surged in Wisconsin: up 180% on the route-weighted index since 1969.

Brown Creeper Population Forecast in Wisconsin

If the recent trend holds, Brown Creeper in Wisconsin is projected to fall about 11% by 2029 — from 0.20 in 2024 to a central estimate of 0.18 (95% range 0.09–0.27). A 5-year backtest shows a typical error of ±37.7%, with 100% of held-out values landing inside the 95% band.

-11%Change by 2029
0.18Projected 2029 index
0.09–0.2795% range
±37.7%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
20250.170.080.26
20260.170.080.26
20270.170.080.26
20280.170.090.26
20290.180.090.27

Brown Creeper Survey Routes in Wisconsin

Routes recording Brown Creeper in Wisconsin.
Land O' Lakes 2520242017
Land O Lakes420161967
Montreal220241988
Eagle River220241966
Popple River220241976
Amberg220211982
Chaffey120131993
Iron River120192007
Grand View120241972
Bayfield120162012
Shanagolden120211979
Union Twp119841984
Loraine119671967
Weyerhauser120192004
Couderay120141974
Rib Lake120152012
Merrill120231991
Irma120231973
Mcnaughton120121973
Crandon120221967
Hollister120231980
Wausaukee120231981
Washington I120241998
Esdaile119971996
Trempealeau119841984

Brown Creeper Population Trend in Other States

alaskaarizonacaliforniacoloradoconnecticutidahoillinoisindianaiowamainemarylandmassachusettsmichiganminnesotamontananebraskanevadanew-hampshirenew-jerseynew-mexiconew-yorknorth-carolinanorth-dakotaohiooregonpennsylvaniarhode-islandsouth-dakotatennesseetexasutahvermontvirginiawashingtonwest-virginiawyoming

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