BirdAnalyst
Species · BCR 9 · BBS 2025 Release · 1966–2024

Lewis's Woodpecker In Great Basin

All regionsGreat BasinForest birds

Lewis's Woodpecker in Great Basin has fallen sharply: down 72% on the route-weighted index since 1970.

-72%Since 1970
58Routes In Region
56Years

Notable Signals

long arc declinecomputed index

Lewis's Woodpecker has fallen sharply in Great Basin: down 72% on the route-weighted index since 1970.

Forecast

If the recent trend holds, Lewis's Woodpecker in Great Basin is projected to fall about 46% by 2029 — from 0.21 in 2024 to a central estimate of 0.12 (95% range 0.00–0.39). A 5-year backtest shows a typical error of ±46.7%, with 100% of held-out values landing inside the 95% band.

-46%Change by 2029
0.12Projected 2029 index
0.00–0.3995% range
±46.7%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
20250.130.000.41
20260.130.000.41
20270.120.000.40
20280.120.000.40
20290.120.000.39

Routes In Great Basin

Routes recording Lewis's Woodpecker in Great Basin.
TwispWASHINGTON122024
Iron GateCALIFORNIA62019
Silver CityIDAHO62024
Wizard FallsOREGON52017
SistersOREGON52022
BuchananOREGON42024
Bly 2OREGON32024
SnowdenWASHINGTON31989
NubieberCALIFORNIA22000
BartleCALIFORNIA22004
Fall River MillsCALIFORNIA22011
RanchograndeNEVADA21990
ImnahaOREGON22022
Davis LakeOREGON22022
ReardanWASHINGTON22010
WapatoWASHINGTON21993
Lake ChelanWASHINGTON22018
LikelyCALIFORNIA11984
Crowley LakeCALIFORNIA12023
MacdoelCALIFORNIA12010
Clear Lk ResCALIFORNIA12018
TionestaCALIFORNIA12018
GiffordIDAHO11971
BakerIDAHO12022
SquirrelIDAHO11994

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