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

Warbling Vireo Population Trend in North Dakota

All statesForest birds

Warbling Vireo in North Dakota has surged: up 333% on the route-weighted index since 1969.

+333%Since 1969
50Routes In State
57Years

Notable Warbling Vireo Trends in North Dakota

long arc increasecomputed index

Warbling Vireo has surged in North Dakota: up 333% on the route-weighted index since 1969.

Warbling Vireo Population Forecast in North Dakota

If the recent trend holds, Warbling Vireo in North Dakota is projected to rise about 25% by 2029 — from 5.7 in 2024 to a central estimate of 7.1 (95% range 5.5–8.7). A 5-year backtest shows a typical error of ±11.4%, with 100% of held-out values landing inside the 95% band.

+25%Change by 2029
7.1Projected 2029 index
5.5–8.795% range
±11.4%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
20256.75.18.3
20266.85.28.4
20276.95.38.5
20287.05.48.6
20297.15.58.7

Warbling Vireo Survey Routes in North Dakota

Routes recording Warbling Vireo in North Dakota.
Turtle Mtns2920241980
Cooperstown2220241969
Edgeley1920241980
Denbigh1920241968
Loraine1520191982
Kempton1120171967
Buchanan1020241967
Regan820221974
Emerado720241973
Walcott620231967
Lake George620211968
Sheyenne Lk620241980
Montpelier620241990
Forman520241968
Sydney519831979
Wimbledon520241981
Webster520011989
Solen520242005
Horsehead Lk420241980
Douglas Crk420241982
Braddock420221988
Rolla320071969
Carpio320231967
Wild Rose320241982
Powers Lake320241982

Warbling Vireo Population Trend in Other States

alabamaalaskaarizonaarkansascaliforniacoloradoconnecticutdelawareidahoillinoisindianaiowakansaskentuckylouisianamainemarylandmassachusettsmichiganminnesotamississippimissourimontananebraskanevadanew-hampshirenew-jerseynew-mexiconew-yorknorth-carolinaohiooklahomaoregonpennsylvaniarhode-islandsouth-dakotatennesseetexasutahvermontvirginiawashingtonwest-virginiawisconsinwyoming

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