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

Black-throated Sparrow Population Trend in Oregon

All statesArid-land birds

Black-throated Sparrow in Oregon has surged: up 88% on the route-weighted index since 1971.

+88%Since 1971
24Routes In State
50Years

Notable Black-throated Sparrow Trends in Oregon

long arc increasecomputed index

Black-throated Sparrow has surged in Oregon: up 88% on the route-weighted index since 1971.

Black-throated Sparrow Population Forecast in Oregon

If the recent trend holds, Black-throated Sparrow in Oregon is projected to rise about 25% by 2029 — from 0.54 in 2024 to a central estimate of 0.67 (95% range 0.00–1.4). A 5-year backtest shows a typical error of ±89.1%, with 80% of held-out values landing inside the 95% band.

+25%Change by 2029
0.67Projected 2029 index
0.00–1.495% range
±89.1%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
20250.640.001.4
20260.650.001.4
20270.660.001.4
20280.660.001.4
20290.670.001.4

Black-throated Sparrow Survey Routes in Oregon

Routes recording Black-throated Sparrow in Oregon.
Trout Creek4620212021
Catlow Rim2120241994
Warner Vally1320241993
Alvord Lake620241969
Princeton519851985
Blizzard Gap520241984
Adrian420211985
Three Forks220212018
Blitzen 2220241997
Crowley219941994
Blitzen219921984
Clover Creek219731973
Twickenham220152015
Harney Lake220241993
Flook Lake220072007
Fandango Can120242024
Malheur Nwr119941986
Elk Lake119971997
Battle Mtn119911985
Lookout Lake119941994
Barnhouse120222007
Green Mtn.120211995
Crane120231993
Crooked Riv.119951995

Black-throated Sparrow Population Trend in Other States

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