BirdAnalyst
Species · BCR 10 · BBS 2025 Release · 1966–2024

Sagebrush Sparrow In Northern Rockies

All regionsNorthern RockiesGeneralists

Sagebrush Sparrow in Northern Rockies has surged: up 120% on the route-weighted index since 1970.

+120%Since 1970
83Routes In Region
55Years

Notable Signals

long arc increasecomputed index

Sagebrush Sparrow has surged in Northern Rockies: up 120% on the route-weighted index since 1970.

Forecast

If the recent trend holds, Sagebrush Sparrow in Northern Rockies is projected to fall about 59% by 2029 — from 2.7 in 2024 to a central estimate of 1.1 (95% range 0.00–7.1). A 5-year backtest shows a typical error of ±27.1%, with 100% of held-out values landing inside the 95% band.

-59%Change by 2029
1.1Projected 2029 index
0.00–7.195% range
±27.1%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
20251.30.007.4
20261.30.007.3
20271.20.007.3
20281.20.007.2
20291.10.007.1

Routes In Northern Rockies

Routes recording Sagebrush Sparrow in Northern Rockies.
MckinnonWYOMING921986
Patrick DrawWYOMING851980
Seedskadee 2WYOMING712024
Flamin GorgeWYOMING682024
RelianceWYOMING612018
Patrick Draw 2WYOMING531983
LeoWYOMING431982
Black Rock 2WYOMING402024
Green RiverWYOMING361984
Patrick Draw 4WYOMING352002
BaggsWYOMING282024
Browns ParkCOLORADO242024
Patrick Draw 5WYOMING222009
FarsonWYOMING212024
Bear CreekWYOMING192024
Elk Horn 2WYOMING192024
DiamondvilleWYOMING171982
WickiupOREGON161986
WorlandWYOMING162024
Elk HornWYOMING132018
CarterWYOMING112016
GeboWYOMING102024
BairoilWYOMING102024
HarmonyWYOMING101980
Black RockWYOMING92001

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