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

Yellow-headed Blackbird Population Trend in Oregon

All statesGeneralists

Yellow-headed Blackbird in Oregon has fallen sharply: down 63% on the route-weighted index since 1970.

-63%Since 1970
55Routes In State
56Years

Notable Yellow-headed Blackbird Trends in Oregon

long arc declinecomputed index

Yellow-headed Blackbird has fallen sharply in Oregon: down 63% on the route-weighted index since 1970.

Yellow-headed Blackbird Population Forecast in Oregon

If the recent trend holds, Yellow-headed Blackbird in Oregon is projected to fall about 100% by 2029 — from 1.1 in 2024 to a central estimate of 0.00 (95% range 0.00–6.2). A 5-year backtest shows a typical error of ±158.6%, with 100% of held-out values landing inside the 95% band.

-100%Change by 2029
0.00Projected 2029 index
0.00–6.295% range
±158.6%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
20250.000.006.2
20260.000.006.2
20270.000.006.2
20280.000.006.2
20290.000.006.2

Yellow-headed Blackbird Survey Routes in Oregon

Routes recording Yellow-headed Blackbird in Oregon.
Merrill14120221994
Princeton7819851972
Umatilla6120231992
Catlow Rim3120231994
Modoc Point3020181969
Fish Lake2520241972
Wickiup2219881987
Modoc Point 22120242024
Malheur Nwr2120221986
Davis Lake1420242000
Harney Lake1220221993
Albee1019881988
Sheaville920242013
Blizzard Gap720241984
Warner Vally720241993
Alvord Lake620241968
Sparta619991971
Blitzen 2520241994
Ordnance519791971
Dell Spring519901968
Elk Lake520161981
Chinchalo520231993
Fandango Can420231980
Silver Creek420222022
Bly419951973

Yellow-headed Blackbird Population Trend in Other States

arizonacaliforniacoloradoidahoillinoisindianaiowakansasmichiganminnesotamissourimontananebraskanevadanew-mexiconorth-dakotaohiooklahomasouth-dakotatexasutahwashingtonwisconsinwyoming

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