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

Pygmy Nuthatch In Great Basin

All regionsGreat BasinForest birds

Pygmy Nuthatch in Great Basin has surged: up 137% on the route-weighted index since 1971.

+137%Since 1971
51Routes In Region
55Years

Notable Signals

long arc increasecomputed index

Pygmy Nuthatch has surged in Great Basin: up 137% on the route-weighted index since 1971.

Forecast

If the recent trend holds, Pygmy Nuthatch in Great Basin is projected to rise about 180% by 2029 — from 0.24 in 2024 to a central estimate of 0.68 (95% range 0.34–1.0). A 5-year backtest shows a typical error of ±68.1%, with 80% of held-out values landing inside the 95% band.

+180%Change by 2029
0.68Projected 2029 index
0.34–1.095% range
±68.1%Backtest error
19692029
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
20250.640.300.99
20260.650.311.00
20270.660.321.0
20280.670.331.0
20290.680.341.0

Routes In Great Basin

Routes recording Pygmy Nuthatch in Great Basin.
SistersOREGON152024
Bly 2OREGON62022
L. WenatcheeWASHINGTON62023
Turnbull NwrWASHINGTON62023
TionestaCALIFORNIA52021
Modoc PointOREGON52018
HackamoreCALIFORNIA42010
Crowder FlatCALIFORNIA42019
Badger CreekOREGON41998
PauninaOREGON42013
ReardanWASHINGTON42024
RimrockWASHINGTON41973
SnowdenWASHINGTON41971
MaldenWASHINGTON42023
MacdoelCALIFORNIA32019
Deep SpringsCALIFORNIA32003
Fall River MillsCALIFORNIA32007
PaisleyOREGON32022
Modoc Point 2OREGON32024
Picture FlatOREGON32021
NubieberCALIFORNIA22002
IngallsCALIFORNIA21996
Crowley LakeCALIFORNIA22018
Clear Lk ResCALIFORNIA22018
DeschutesOREGON22024

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