BirdAnalyst
Species · Idaho · BBS 2025 Release · 1966–2024

Sage Thrasher Population Trend in Idaho

All statesGeneralists

Sage Thrasher in Idaho has surged: up 106% on the route-weighted index since 1971.

+106%Since 1971
40Routes In State
55Years

Notable Sage Thrasher Trends in Idaho

long arc increasecomputed index

Sage Thrasher has surged in Idaho: up 106% on the route-weighted index since 1971.

Sage Thrasher Population Forecast in Idaho

If the recent trend holds, Sage Thrasher in Idaho is projected to stay roughly flat through 2029, near 10 (95% range 4.6–15). A 5-year backtest shows a typical error of ±45.9%, with 100% of held-out values landing inside the 95% band.

+2%Change by 2029
10Projected 2029 index
4.6–1595% range
±45.9%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
20259.94.515
20269.94.515
202710.04.515
2028104.615
2029104.615

Sage Thrasher Survey Routes in Idaho

Routes recording Sage Thrasher in Idaho.
Dubois4720241969
Twin Buttes4120241985
Lost River3820241985
Kyle Canyon3320241985
Henry3119831973
Carey2620181989
Iron Springs2420241988
Tractor Flat2020241985
Blacks Creek1620171969
Circular Bu1520241985
Craters1520181979
Blackft Res1320181984
Triangle1320241985
Sawtooth Cty1220141988
Hot Spring1020141988
Almo820231988
Leadore720241974
Daniels Res520191988
Mud Lake420152004
Dougal Res420211988
Baker320241974
Crane Creek320191988
Springfield220161977
Picabo220211988
Cape Horn119961996

Sage Thrasher Population Trend in Other States

arizonacaliforniacoloradomontananebraskanevadanew-mexiconorth-dakotaoregonsouth-dakotautahwashingtonwyoming

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