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Species · Arizona · BBS 2025 Release · 1966–2024

Yellow-headed Blackbird Population Trend in Arizona

All statesGeneralists

Yellow-headed Blackbird in Arizona has surged: up 165% on the route-weighted index since 1971.

+165%Since 1971
23Routes In State
51Years

Notable Yellow-headed Blackbird Trends in Arizona

long arc increasecomputed index

Yellow-headed Blackbird has surged in Arizona: up 165% on the route-weighted index since 1971.

Yellow-headed Blackbird Population Forecast in Arizona

If the recent trend holds, Yellow-headed Blackbird in Arizona is projected to rise about 941% by 2029 — from 0.14 in 2024 to a central estimate of 1.5 (95% range 0.08–2.9). A 5-year backtest shows a typical error of ±441.6%, with 60% of held-out values landing inside the 95% band.

+941%Change by 2029
1.5Projected 2029 index
0.08–2.995% range
±441.6%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
20251.40.002.8
20261.40.012.8
20271.40.042.9
20281.50.062.9
20291.50.082.9

Yellow-headed Blackbird Survey Routes in Arizona

Routes recording Yellow-headed Blackbird in Arizona.
Laguna3720231968
Palo Verde2120131999
Vicksburg1019891988
Araby620231993
Pomerene519791979
Cibola Lake520241993
Williams420012001
Alpine320192003
Mt Trumbull219791979
Sawmill220081988
Oatman219951995
Palo Verde 2220222014
Maine219951993
Hope 2220162014
Mormon Lake119711969
Hunt120041971
Quartzsite119931993
Dateland120121997
Willow Beach 2120172017
Mcneal119991999
Clay Spring120122012
Hope120031991
Carr Mtn119871987

Yellow-headed Blackbird Population Trend in Other States

californiacoloradoidahoillinoisindianaiowakansasmichiganminnesotamissourimontananebraskanevadanew-mexiconorth-dakotaohiooklahomaoregonsouth-dakotatexasutahwashingtonwisconsinwyoming

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