BirdAnalyst
Species · Minnesota · BBS 2025 Release · 1966–2024

Blue-winged Teal Population Trend in Minnesota

All statesWaterfowl

Blue-winged Teal in Minnesota has fallen sharply: down 70% on the route-weighted index since 1969.

-70%Since 1969
73Routes In State
57Years

Notable Blue-winged Teal Trends in Minnesota

long arc declinecomputed index

Blue-winged Teal has fallen sharply in Minnesota: down 70% on the route-weighted index since 1969.

Blue-winged Teal Population Forecast in Minnesota

If the recent trend holds, Blue-winged Teal in Minnesota is projected to stay roughly flat through 2029, near 0.47 (95% range 0.00–1.2). A 5-year backtest shows a typical error of ±99.8%, with 100% of held-out values landing inside the 95% band.

+0%Change by 2029
0.47Projected 2029 index
0.00–1.295% range
±99.8%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
20250.540.001.2
20260.520.001.2
20270.510.001.2
20280.490.001.2
20290.470.001.2

Blue-winged Teal Survey Routes in Minnesota

Routes recording Blue-winged Teal in Minnesota.
Tyler1420191993
Tenney1220161978
Glenwood1220191993
Fairmont1119931993
Chokio North820241993
Tracy720192004
Big Stone720121995
Chokio520241970
Minnetonka420151969
Mille Lacs419751967
Lake Bronson420031978
Sherburne Nr320231990
Dawson320241973
Money Creek220181970
Chatfield219801980
Hartland220121967
Ash Creek219941978
Redwood Fall220081978
Osseo220241967
Knapp220191968
Gluek220191969
Cromwell220171968
Glyndon220241978
Hovland219901976
Crane Lake219891989

Blue-winged Teal Population Trend in Other States

alabamaalaskaarizonaarkansascaliforniacoloradodelawarefloridaidahoillinoisindianaiowakansaskentuckylouisianamainemarylandmassachusettsmichiganmississippimissourimontananebraskanevadanew-hampshirenew-mexiconew-yorknorth-dakotaohiooklahomaoregonpennsylvaniarhode-islandsouth-dakotatennesseetexasutahvermontvirginiawashingtonwest-virginiawisconsinwyoming

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