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

Fox Sparrow In Great Basin

All regionsGreat BasinGeneralists

Fox Sparrow in Great Basin has held roughly steady: up 9% on the route-weighted index since 1970.

+9%Since 1970
72Routes In Region
56Years

Notable Signals

No notable trend signals for Fox Sparrow in Great Basin. See the full index history below.

Forecast

If the recent trend holds, Fox Sparrow in Great Basin is projected to fall about 36% by 2029 — from 0.82 in 2024 to a central estimate of 0.53 (95% range 0.00–1.1). A 5-year backtest shows a typical error of ±49.8%, with 80% of held-out values landing inside the 95% band.

-36%Change by 2029
0.53Projected 2029 index
0.00–1.195% range
±49.8%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
20250.540.001.1
20260.540.001.1
20270.540.001.1
20280.530.001.1
20290.530.001.1

Routes In Great Basin

Routes recording Fox Sparrow in Great Basin.
Davis LakeOREGON382024
Magic MtnIDAHO242024
Wizard FallsOREGON182024
BartleCALIFORNIA142021
Crowder FlatCALIFORNIA122018
HawthorneNEVADA122001
SistersOREGON102024
Crowley LakeCALIFORNIA72017
Ruby ValleyNEVADA72001
AustinNEVADA62018
MacdoelCALIFORNIA51993
Silver CityIDAHO52024
Medicine Mtn.CALIFORNIA42015
Humboldt NfNEVADA42019
Dell SpringOREGON41996
Bly 2OREGON42024
PauninaOREGON42024
Hardware RanchUTAH42023
E. Mt. AdamsWASHINGTON42024
Deep SpringsCALIFORNIA32022
NighthawkWASHINGTON31992
Davis CreekCALIFORNIA21984
HackamoreCALIFORNIA22010
SquirrelIDAHO22005
BatesIDAHO22005

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