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Species · Idaho · BBS 2025 Release · 1966–2024

Red-breasted Nuthatch Population Trend in Idaho

All statesForest birds

Red-breasted Nuthatch in Idaho has surged: up 448% on the route-weighted index since 1972.

+448%Since 1972
41Routes In State
53Years

Notable Red-breasted Nuthatch Trends in Idaho

long arc increasecomputed index

Red-breasted Nuthatch has surged in Idaho: up 448% on the route-weighted index since 1972.

Red-breasted Nuthatch Population Forecast in Idaho

If the recent trend holds, Red-breasted Nuthatch in Idaho is projected to rise about 17% by 2029 — from 3.4 in 2024 to a central estimate of 3.9 (95% range 2.3–5.6). A 5-year backtest shows a typical error of ±18.5%, with 80% of held-out values landing inside the 95% band.

+17%Change by 2029
3.9Projected 2029 index
2.3–5.695% range
±18.5%Backtest error
19692029
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
20253.82.15.5
20263.82.15.5
20273.92.25.5
20283.92.25.6
20293.92.35.6

Red-breasted Nuthatch Survey Routes in Idaho

Routes recording Red-breasted Nuthatch in Idaho.
Coolin3220241986
Grangeville1720241986
Naples1420241972
Mivoden1320231977
Rochat Divde1220231993
Lolo Pass1020191992
Cobalt920241989
Avery820231979
Baldy Mountain820162013
Golden720161987
Cascade719841981
Salmon River620211988
N Fork Cda R520191993
Marble Creek520231988
Nezperce420121969
Pierce420071990
Nezperce Nf419991992
Centerville320191973
Joel320241989
Featherville320241989
Cabarton320231985
Cape Horn220231972
Alturas219871986
Sawtooth City 2220242015
Sawtooth Cty220141988

Red-breasted Nuthatch Population Trend in Other States

alaskaarizonacaliforniacoloradoconnecticutillinoisindianakansasmainemarylandmassachusettsmichiganminnesotamontananebraskanevadanew-hampshirenew-jerseynew-mexiconew-yorknorth-carolinanorth-dakotaohiooregonpennsylvaniarhode-islandsouth-carolinasouth-dakotatennesseeutahvermontvirginiawashingtonwest-virginiawisconsinwyoming

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