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

Brown Creeper Population Trend in Idaho

All statesForest birds

Brown Creeper in Idaho has declined: down 46% on the route-weighted index since 1974.

-46%Since 1974
29Routes In State
46Years

Notable Brown Creeper Trends in Idaho

No notable trend signals for Brown Creeper in Idaho. See the full index history below.

Brown Creeper Population Forecast in Idaho

If the recent trend holds, Brown Creeper in Idaho is projected to stay roughly flat through 2029, near 0.09 (95% range 0.00–0.39). A 5-year backtest shows a typical error of ±74.9%, with 40% of held-out values landing inside the 95% band.

n/aChange by 2029
0.09Projected 2029 index
0.00–0.3995% range
±74.9%Backtest error
19682029
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
20250.100.000.39
20260.100.000.39
20270.090.000.39
20280.090.000.39
20290.090.000.39

Brown Creeper Survey Routes in Idaho

Routes recording Brown Creeper in Idaho.
Lolo Pass1020191999
Mivoden320231998
Nezperce319851985
Marble Creek320231992
Cabarton320072003
Grangeville220231994
N Fork Cda R220191993
Cascade219831983
Burgdorf220131988
Naples120211975
Avery120231995
Golden120032003
Cape Horn120082007
Challis120041984
Rochat Divde120231993
Squirrel119911984
Centerville119741974
Alturas119691968
Springfield119781978
Magic Mtn120221988
Coolin120241986
Joel119901990
Pierce119971992
Salmon River120102003
Yellow Pine120091993

Brown Creeper Population Trend in Other States

alaskaarizonacaliforniacoloradoconnecticutillinoisindianaiowamainemarylandmassachusettsmichiganminnesotamontananebraskanevadanew-hampshirenew-jerseynew-mexiconew-yorknorth-carolinanorth-dakotaohiooregonpennsylvaniarhode-islandsouth-dakotatennesseetexasutahvermontvirginiawashingtonwest-virginiawisconsinwyoming

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