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Species · Wisconsin · BBS 2025 Release · 1966–2024

Red-breasted Nuthatch Population Trend in Wisconsin

All statesForest birds

Red-breasted Nuthatch in Wisconsin has surged: up 15× on the route-weighted index since 1968.

15×Since 1968
70Routes In State
58Years

Notable Red-breasted Nuthatch Trends in Wisconsin

long arc increasecomputed index

Red-breasted Nuthatch has surged in Wisconsin: up 15× on the route-weighted index since 1968.

Red-breasted Nuthatch Population Forecast in Wisconsin

If the recent trend holds, Red-breasted Nuthatch in Wisconsin is projected to rise about 40% by 2029 — from 2.3 in 2024 to a central estimate of 3.2 (95% range 2.2–4.2). A 5-year backtest shows a typical error of ±38.7%, with 60% of held-out values landing inside the 95% band.

+40%Change by 2029
3.2Projected 2029 index
2.2–4.295% range
±38.7%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
20253.02.04.0
20263.02.04.0
20273.12.14.1
20283.12.14.1
20293.22.24.2

Red-breasted Nuthatch Survey Routes in Wisconsin

Routes recording Red-breasted Nuthatch in Wisconsin.
Mcnaughton2020241970
Land O Lakes1620161967
Wausaukee1620241980
Eagle River1420241967
Amberg1320241980
Conover1220241998
Land O' Lakes 21220242017
Popple River1020241966
Washington I920241970
Union Twp820241975
Pigeon Creek820241999
Bayfield720241967
Rhinelander720231998
Irma620241967
Crandon520191970
Mather520231966
Mellen520241998
Iron River420241968
Grand View420241966
Shanagolden420241973
Cumberland420241969
Phillips420241980
Rib Lake420241973
Flambeau420241998
River Falls420122012

Red-breasted Nuthatch Population Trend in Other States

alaskaarizonacaliforniacoloradoconnecticutidahoillinoisindianakansasmainemarylandmassachusettsmichiganminnesotamontananebraskanevadanew-hampshirenew-jerseynew-mexiconew-yorknorth-carolinanorth-dakotaohiooregonpennsylvaniarhode-islandsouth-carolinasouth-dakotatennesseeutahvermontvirginiawashingtonwest-virginiawyoming

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