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

Black-throated Sparrow Population Trend in Colorado

All statesArid-land birds

Black-throated Sparrow in Colorado has increased: up 37% on the route-weighted index since 1980.

+37%Since 1980
17Routes In State
30Years

Notable Black-throated Sparrow Trends in Colorado

No notable trend signals for Black-throated Sparrow in Colorado. See the full index history below.

Black-throated Sparrow Population Forecast in Colorado

If the recent trend holds, Black-throated Sparrow in Colorado is projected to fall about 65% by 2029 — from 0.24 in 2024 to a central estimate of 0.08 (95% range 0.00–0.25). A 5-year backtest shows a typical error of ±56%, with 80% of held-out values landing inside the 95% band.

-65%Change by 2029
0.08Projected 2029 index
0.00–0.2595% range
±56%Backtest error
19742029
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
20250.080.000.25
20260.080.000.25
20270.080.000.25
20280.080.000.25
20290.080.000.25

Black-throated Sparrow Survey Routes in Colorado

Routes recording Black-throated Sparrow in Colorado.
Antonito2619961996
Baxter Pass1120242006
San Luis919961996
Rosevale820242009
Maybell519741974
Villegreen419981998
Douglas Pass220241991
Fruita120062006
Browns Park120062006
Nucla120242013
Delta119881974
De Beque120142002
Basin120142008
Paonia120182016
Cortez120002000
Doyle Bridge119971994
Cone Mtn120242016

Black-throated Sparrow Population Trend in Other States

arizonacaliforniaidahonevadanew-mexicooklahomaoregontexasutahwashington

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