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

Red-necked Grebe Population Trend in North Dakota

All statesWetland birds

Red-necked Grebe in North Dakota has surged: up 26× on the route-weighted index since 1986.

26×Since 1986
14Routes In State
38Years

Notable Red-necked Grebe Trends in North Dakota

long arc increasecomputed index

Red-necked Grebe has surged in North Dakota: up 26× on the route-weighted index since 1986.

Red-necked Grebe Population Forecast in North Dakota

If the recent trend holds, Red-necked Grebe in North Dakota is projected to fall about 21% by 2029 — from 1.7 in 2024 to a central estimate of 1.4 (95% range 0.71–2.1). A 5-year backtest shows a typical error of ±34.6%, with 100% of held-out values landing inside the 95% band.

-21%Change by 2029
1.4Projected 2029 index
0.71–2.195% range
±34.6%Backtest error
19812029
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
20251.30.601.9
20261.30.622.0
20271.30.652.0
20281.40.682.0
20291.40.712.1

Red-necked Grebe Survey Routes in North Dakota

Routes recording Red-necked Grebe in North Dakota.
Turtle Mtns2420241981
Horsehead Lk1120242002
Rolla320242002
Lakota 2320242011
Denbigh320242011
Powers Lake220242019
Cooperstown220212021
Sheyenne Lk220191987
Lakota220092008
Forman120072004
Montpelier120232023
Wimbledon120222015
Webster120132012
Niles120241998

Red-necked Grebe Population Trend in Other States

alaskaidahominnesotamontanaoregonwashingtonwisconsinwyoming

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