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

Gadwall Population Trend in Utah

All statesWaterfowl

Gadwall in Utah has held roughly steady: down 8% on the route-weighted index since 1981.

-8%Since 1981
35Routes In State
45Years

Notable Gadwall Trends in Utah

No notable trend signals for Gadwall in Utah. See the full index history below.

Gadwall Population Forecast in Utah

If the recent trend holds, Gadwall in Utah is projected to rise about 350% by 2029 — from 0.44 in 2024 to a central estimate of 2.0 (95% range 0.00–4.2). A 5-year backtest shows a typical error of ±241.7%, with 80% of held-out values landing inside the 95% band.

+350%Change by 2029
2.0Projected 2029 index
0.00–4.295% range
±241.7%Backtest error
19742029
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
20252.00.004.1
20262.00.004.1
20272.00.004.2
20282.00.004.2
20292.00.004.2

Gadwall Survey Routes in Utah

Routes recording Gadwall in Utah.
Bear River4120231992
Neponset Res4020171995
Vernal3120161999
Callao1020241992
Navajo Lake920241986
E. Bear Lake820221999
Wellington 2820112010
Saleratus Cr520161995
Randolph420241992
Ferron420132013
Alton420102001
Jensen420231992
Timpie Spg319841982
Skyline Driv320031986
Promontory220231974
Goshen220121998
Dragerton219971997
Woodruff220172017
Lynn220211986
M Warner Res220241993
Beck 2220051993
Green River220132013
Gold Hill220021987
Uintah Nf219901990
Fish Lake Nf220042004

Gadwall Population Trend in Other States

alaskaarizonacaliforniacoloradodelawareidahoillinoisiowakansasmassachusettsmichiganminnesotamissourimontananebraskanevadanew-jerseynew-mexiconew-yorknorth-dakotaoklahomaoregonpennsylvaniarhode-islandsouth-dakotatexasvermontwashingtonwisconsinwyoming

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