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

Ferruginous Hawk Population Trend in North Dakota

All statesGeneralists

Ferruginous Hawk in North Dakota has held roughly steady: up 4% on the route-weighted index since 1969.

+4%Since 1969
35Routes In State
56Years

Notable Ferruginous Hawk Trends in North Dakota

No notable trend signals for Ferruginous Hawk in North Dakota. See the full index history below.

Ferruginous Hawk Population Forecast in North Dakota

If the recent trend holds, Ferruginous Hawk in North Dakota is projected to rise about 269% by 2028 — from 0.07 in 2023 to a central estimate of 0.26 (95% range 0.00–0.55). A 5-year backtest shows a typical error of ±105.7%, with 100% of held-out values landing inside the 95% band.

+269%Change by 2028
0.26Projected 2028 index
0.00–0.5595% range
±105.7%Backtest error
19672028
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
20240.260.000.55
20250.260.000.55
20260.260.000.55
20270.260.000.55
20280.260.000.55

Ferruginous Hawk Survey Routes in North Dakota

Routes recording Ferruginous Hawk in North Dakota.
Glen Ullin320222000
Danzig220101983
Golva220111987
Sheyenne Lk220021992
Forman119771977
Carson120031988
Edgeley120171991
Lake George120211967
Kempton120051993
Cooperstown119911978
Horsehead Lk120221980
Buchanan120231981
Webster120072007
Rolla119911974
Regan120211973
Ft Yates119891979
Dickinson120101997
Dunn Center120101993
Carpio119901990
Tobacco119911976
Stanley120191972
Denbigh120111969
Lark119781970
Bowman120102000
Zap120001988

Ferruginous Hawk Population Trend in Other States

arizonacaliforniacoloradoidahokansasmontananebraskanevadanew-mexicooklahomaoregonsouth-dakotatexasutahwashingtonwyoming

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