BirdAnalyst
Species · North Dakota · BBS 2025 Release · 1966–2024

Brewer's Blackbird Population Trend in North Dakota

All statesGeneralists

Brewer's Blackbird in North Dakota has surged: up 207% on the route-weighted index since 1969.

+207%Since 1969
51Routes In State
57Years

Notable Brewer's Blackbird Trends in North Dakota

long arc increasecomputed index

Brewer's Blackbird has surged in North Dakota: up 207% on the route-weighted index since 1969.

Brewer's Blackbird Population Forecast in North Dakota

If the recent trend holds, Brewer's Blackbird in North Dakota is projected to rise about 15% by 2029 — from 13 in 2024 to a central estimate of 15 (95% range 8.3–21). A 5-year backtest shows a typical error of ±24.3%, with 100% of held-out values landing inside the 95% band.

+15%Change by 2029
15Projected 2029 index
8.3–2195% range
±24.3%Backtest error
19672029
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
2025147.721
2026147.921
2027158.021
2028158.221
2029158.321

Brewer's Blackbird Survey Routes in North Dakota

Routes recording Brewer's Blackbird in North Dakota.
Denbigh8220241968
Abercrombie 28220172013
Wild Rose5020241982
Glen Ullin3220221982
Solen3220242005
Stanley2920241970
Danzig 22720242019
Bowesmont 22720162015
Carpio2320231967
Golva2220231979
Ft Yates2020041970
Dunn Center1920241968
Powers Lake1820241980
Zap1420241967
Regan1320221969
Sheyenne Lk1320241982
Turtle Mtns1320241983
Montpelier1320011990
Horsehead Lk1220241981
Roosevelt Pk1120191982
Parshall1120111982
Douglas Crk1120241982
Buchanan1020241976
Loraine1020191982
Kempton820171971

Brewer's Blackbird Population Trend in Other States

arizonacaliforniacoloradoidahoindianamichiganminnesotamontananebraskanevadanew-mexicooklahomaoregonsouth-dakotatexasutahwashingtonwisconsinwyoming

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