BirdAnalyst
Species · BCR 15 · BBS 2025 Release · 1966–2024

Nuttall's Woodpecker In Sierra Nevada

All regionsSierra NevadaForest birds

Nuttall's Woodpecker in Sierra Nevada has collapsed: down 80% on the route-weighted index since 1973.

-80%Since 1973
14Routes In Region
53Years

Notable Signals

long arc declinecomputed index

Nuttall's Woodpecker has collapsed in Sierra Nevada: down 80% on the route-weighted index since 1973.

Forecast

If the recent trend holds, Nuttall's Woodpecker in Sierra Nevada is projected to rise about 29% by 2029 — from 0.32 in 2024 to a central estimate of 0.41 (95% range 0.00–1.0). A 5-year backtest shows a typical error of ±131.6%, with 100% of held-out values landing inside the 95% band.

+29%Change by 2029
0.41Projected 2029 index
0.00–1.095% range
±131.6%Backtest error
19702029
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
20250.410.001.0
20260.410.001.0
20270.410.001.0
20280.410.001.0
20290.410.001.0

Routes In Sierra Nevada

Routes recording Nuttall's Woodpecker in Sierra Nevada.
Silver CityCALIFORNIA52013
Cottage SpgsCALIFORNIA41970
Bass LakeCALIFORNIA32019
Kings CanyonCALIFORNIA32024
Forest Hill 2CALIFORNIA22005
Lassen ParkCALIFORNIA11985
Greenhorn MtCALIFORNIA12006
Tuolumne GroveCALIFORNIA12024
GeneseeCALIFORNIA11972
Higgins CornCALIFORNIA12024
LakeshoreCALIFORNIA11973
CoultervilleCALIFORNIA12017
WawonaCALIFORNIA12024
Pine MountainCALIFORNIA11998

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