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

Sagebrush Sparrow In Great Basin

All regionsGreat BasinGeneralists

Sagebrush Sparrow in Great Basin has fallen sharply: down 68% on the route-weighted index since 1970.

-68%Since 1970
153Routes In Region
56Years

Notable Signals

long arc declinecomputed index

Sagebrush Sparrow has fallen sharply in Great Basin: down 68% on the route-weighted index since 1970.

Forecast

If the recent trend holds, Sagebrush Sparrow in Great Basin is projected to fall about 34% by 2029 — from 7.2 in 2024 to a central estimate of 4.7 (95% range 0.00–10). A 5-year backtest shows a typical error of ±26.3%, with 100% of held-out values landing inside the 95% band.

-34%Change by 2029
4.7Projected 2029 index
0.00–1095% range
±26.3%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
20255.00.0011
20264.90.0011
20274.90.0011
20284.80.0011
20294.70.0010

Routes In Great Basin

Routes recording Sagebrush Sparrow in Great Basin.
Toiyabe NfNEVADA1572024
SutcliffeNEVADA1261972
Dobbin CreekNEVADA702018
Walker CanNEVADA622024
Sand PassNEVADA602024
Kyle CanyonIDAHO562024
OreanaNEVADA562003
MizpahNEVADA552024
Willow SpgOREGON551971
WagontireOREGON492024
Fandango CanOREGON472024
Lookout LakeOREGON471994
CortezNEVADA462024
Iron Springs 2UTAH462024
Darroughs Hot SpgsNEVADA442024
Sheldon NwrNEVADA402019
MinervaNEVADA382024
Fish CreekNEVADA372021
BartleCALIFORNIA361977
WillisNEVADA362024
Virgin CreekNEVADA322018
Indian PeakUTAH302021
EurekaNEVADA292024
IllipahNEVADA292021
AustinNEVADA282018

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