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

Gray Partridge Population Trend in North Dakota

All statesGeneralists

Gray Partridge in North Dakota has surged: up 189% on the route-weighted index since 1969.

+189%Since 1969
50Routes In State
57Years

Notable Gray Partridge Trends in North Dakota

long arc increasecomputed index

Gray Partridge has surged in North Dakota: up 189% on the route-weighted index since 1969.

Gray Partridge Population Forecast in North Dakota

If the recent trend holds, Gray Partridge in North Dakota is projected to fall about 54% by 2029 — from 1.6 in 2024 to a central estimate of 0.74 (95% range 0.00–2.0). A 5-year backtest shows a typical error of ±52.4%, with 80% of held-out values landing inside the 95% band.

-54%Change by 2029
0.74Projected 2029 index
0.00–2.095% range
±52.4%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
20250.760.002.0
20260.760.002.0
20270.750.002.0
20280.750.002.0
20290.740.002.0

Gray Partridge Survey Routes in North Dakota

Routes recording Gray Partridge in North Dakota.
Dickinson1220241971
Bentley1120241988
Danzig519951989
Sheyenne Lk520241980
Douglas Crk420241983
Edgeley320091980
Bowman320001975
Roosevelt Pk320171988
Cedar Creek320221970
Golva320231988
Wild Rose320231982
Parshall320131982
Braddock320131988
Forman219911968
Walcott220171968
Sydney219831968
Lake George220111976
Kempton220031972
Buchanan220241967
Lakota219931968
Webster220221992
Rolla220241973
Regan220211968
Dunn Center220241974
Loraine220181982

Gray Partridge Population Trend in Other States

idahoillinoisindianaiowaminnesotamontananebraskanevadanew-yorkoregonsouth-dakotautahwashingtonwisconsinwyoming

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