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

Blue-winged Teal Population Trend in Indiana

All statesWaterfowl

Blue-winged Teal in Indiana has edged down: down 21% on the route-weighted index since 1971.

-21%Since 1971
20Routes In State
30Years

Notable Blue-winged Teal Trends in Indiana

No notable trend signals for Blue-winged Teal in Indiana. See the full index history below.

Blue-winged Teal Population Forecast in Indiana

If the recent trend holds, Blue-winged Teal in Indiana is projected to fall about 23% by 2029 — from 0.09 in 2024 to a central estimate of 0.07 (95% range 0.00–0.40). A 5-year backtest shows a typical error of ±126.1%, with 100% of held-out values landing inside the 95% band.

-23%Change by 2029
0.07Projected 2029 index
0.00–0.4095% range
±126.1%Backtest error
19662029
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
20250.080.000.41
20260.080.000.41
20270.070.000.41
20280.070.000.41
20290.070.000.40

Blue-winged Teal Survey Routes in Indiana

Routes recording Blue-winged Teal in Indiana.
Brookville419971997
Packertown 2320172017
Indiana Dune220242021
Packertown219681968
Fowler219971997
Brazil219781978
Crown Point220182015
Cuba220242019
Gary119841980
Hebron119961981
South Bend119711971
Kewanna119911991
Columbia Cty120221982
Ellis119831966
W Lafayette119951993
Kankakee Sands120242002
Tipton119741974
Shelbyville119981997
Decatur120192019
Portage120042002

Blue-winged Teal Population Trend in Other States

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

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