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

Downy Woodpecker Population Trend in Idaho

All statesForest birds

Downy Woodpecker in Idaho has fallen sharply: down 62% on the route-weighted index since 1977.

-62%Since 1977
42Routes In State
47Years

Notable Downy Woodpecker Trends in Idaho

long arc declinecomputed index

Downy Woodpecker has fallen sharply in Idaho: down 62% on the route-weighted index since 1977.

Downy Woodpecker Population Forecast in Idaho

If the recent trend holds, Downy Woodpecker in Idaho is projected to fall about 58% by 2029 — from 0.12 in 2024 to a central estimate of 0.05 (95% range 0.00–0.18). A 5-year backtest shows a typical error of ±48.3%, with 100% of held-out values landing inside the 95% band.

-58%Change by 2029
0.05Projected 2029 index
0.00–0.1895% range
±48.3%Backtest error
19732029
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
20250.060.000.19
20260.060.000.18
20270.050.000.18
20280.050.000.18
20290.050.000.18

Downy Woodpecker Survey Routes in Idaho

Routes recording Downy Woodpecker in Idaho.
Nezperce Nf319921992
Gifford220171990
Centerville220191984
Ririe220102010
Triangle220102010
Henry219771973
Coolin220181986
Blackft Res120162014
Naples120241980
Mivoden120071981
Lolo Pass119961993
Grangeville119871987
Golden120081987
Baker120141974
Cascade119841974
N Fork Cda R120182006
Challis119941979
Leadore120142009
Rochat Divde120232002
Squirrel120041983
Alturas119861986
Springfield120151977
Magic Mtn120171988
Pocatello119841984
Baldy Mountain120142014

Downy Woodpecker Population Trend in Other States

alabamaalaskaarizonaarkansascaliforniacoloradoconnecticutdelawarefloridageorgiaillinoisindianaiowakansaskentuckylouisianamainemarylandmassachusettsmichiganminnesotamississippimissourimontananebraskanevadanew-hampshirenew-jerseynew-mexiconew-yorknorth-carolinanorth-dakotaohiooklahomaoregonpennsylvaniarhode-islandsouth-carolinasouth-dakotatennesseetexasutahvermontvirginiawashingtonwest-virginiawisconsinwyoming

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