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

Lewis's Woodpecker Population Trend in Washington

All statesForest birds

Lewis's Woodpecker in Washington has collapsed: down 83% on the route-weighted index since 1970.

-83%Since 1970
20Routes In State
56Years

Notable Lewis's Woodpecker Trends in Washington

long arc declinecomputed index

Lewis's Woodpecker has collapsed in Washington: down 83% on the route-weighted index since 1970.

Lewis's Woodpecker Population Forecast in Washington

If the recent trend holds, Lewis's Woodpecker in Washington is projected to fall about 77% by 2029 — from 0.30 in 2024 to a central estimate of 0.07 (95% range 0.00–0.75). A 5-year backtest shows a typical error of ±71.1%, with 100% of held-out values landing inside the 95% band.

-77%Change by 2029
0.07Projected 2029 index
0.00–0.7595% range
±71.1%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
20250.100.000.78
20260.090.000.77
20270.080.000.76
20280.080.000.75
20290.070.000.75

Lewis's Woodpecker Survey Routes in Washington

Routes recording Lewis's Woodpecker in Washington.
Twisp1220241969
Curlew520131994
Snowden319891982
Reardan220102002
Wapato219931977
Cusick220242024
Lake Chelan220181995
Keller119951968
Chewelah119781978
Ardenvoir119821971
Rimrock119691969
Tonasket119971992
Wilbur120231986
Ellensburg120241981
Spring Lake120182012
Nighthawk120241992
Harwood119941994
Pomeroy120162016
Laurier120182013
Yakima120241994

Lewis's Woodpecker Population Trend in Other States

arizonacaliforniacoloradoidahomontananebraskanevadanew-mexicooregonsouth-dakotautahwyoming

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