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

American Avocet Population Trend in North Dakota

All statesShorebirds

American Avocet in North Dakota has surged: up 317% on the route-weighted index since 1969.

+317%Since 1969
33Routes In State
57Years

Notable American Avocet Trends in North Dakota

long arc increasecomputed index

American Avocet has surged in North Dakota: up 317% on the route-weighted index since 1969.

American Avocet Population Forecast in North Dakota

If the recent trend holds, American Avocet in North Dakota is projected to rise about 31% by 2029 — from 1.1 in 2024 to a central estimate of 1.4 (95% range 0.57–2.2). A 5-year backtest shows a typical error of ±80.4%, with 40% of held-out values landing inside the 95% band.

+31%Change by 2029
1.4Projected 2029 index
0.57–2.295% range
±80.4%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
20251.30.512.2
20261.40.532.2
20271.40.542.2
20281.40.562.2
20291.40.572.2

American Avocet Survey Routes in North Dakota

Routes recording American Avocet in North Dakota.
Wimbledon620241990
Sheyenne Lk520191980
Lakota 2520242010
Niles420241992
Regan419831970
Bowman420221971
Horsehead Lk320241981
Powers Lake320101990
Montpelier320241996
Edgeley220241986
Cooperstown220221972
Buchanan220241968
Lakota220091968
Loraine220141983
Wild Rose220241985
Forman120241969
Walcott120072007
Sydney119791975
Lake George120131983
Danzig120131988
Kempton120111967
Webster120231992
Rolla120031971
Dunn Center120092009
Carpio120231970

American Avocet Population Trend in Other States

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