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

Ring-necked Duck Population Trend in Wisconsin

All statesWaterfowl

Ring-necked Duck in Wisconsin has declined: down 40% on the route-weighted index since 1969.

-40%Since 1969
17Routes In State
33Years

Notable Ring-necked Duck Trends in Wisconsin

No notable trend signals for Ring-necked Duck in Wisconsin. See the full index history below.

Ring-necked Duck Population Forecast in Wisconsin

If the recent trend holds, Ring-necked Duck in Wisconsin is projected to fall about 70% by 2029 — from 0.09 in 2024 to a central estimate of 0.03 (95% range 0.00–0.09). A 5-year backtest shows a typical error of ±56.1%, with 80% of held-out values landing inside the 95% band.

-70%Change by 2029
0.03Projected 2029 index
0.00–0.0995% range
±56.1%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
20250.030.000.09
20260.030.000.09
20270.030.000.09
20280.030.000.09
20290.030.000.09

Ring-necked Duck Survey Routes in Wisconsin

Routes recording Ring-necked Duck in Wisconsin.
Cumberland719991966
Gilman620242006
Mather220112010
Elderon219761966
Union Twp220171973
Rib Lake219991982
Amberg220042004
Minong120241977
Grand View120152002
Shanagolden119961982
Hudson120132013
Loraine120111967
Oconto Falls119961996
Conover120221999
Phillips119941994
Crandon120172017
Washington I119941992

Ring-necked Duck Population Trend in Other States

alabamaalaskaarizonacaliforniacoloradoidahoiowamainemichiganminnesotamontananebraskanevadanew-hampshirenew-yorknorth-dakotaohiooregonsouth-dakotautahvermontwashingtonwyoming

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