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

Mallard Population Trend in Missouri

All statesWaterfowl

Mallard in Missouri has declined: down 28% on the route-weighted index since 1973.

-28%Since 1973
40Routes In State
46Years

Notable Mallard Trends in Missouri

No notable trend signals for Mallard in Missouri. See the full index history below.

Mallard Population Forecast in Missouri

If the recent trend holds, Mallard in Missouri is projected to fall about 14% by 2029 — from 0.19 in 2024 to a central estimate of 0.17 (95% range 0.00–0.43). A 5-year backtest shows a typical error of ±96.7%, with 100% of held-out values landing inside the 95% band.

-14%Change by 2029
0.17Projected 2029 index
0.00–0.4395% range
±96.7%Backtest error
19712029
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
20250.170.000.43
20260.170.000.43
20270.170.000.43
20280.170.000.43
20290.170.000.43

Mallard Survey Routes in Missouri

Routes recording Mallard in Missouri.
Trenton1120212009
Pineville720041988
Kahoka2720242014
Miller520182015
Cp Girardeau320191978
Reeds320061994
Hayden320082008
Auburn320242022
Diamond320152015
Hayti320192016
Danville220082006
House Springs220212021
Rensselaer220211983
Warren219831977
Rockingham219911983
Stet219951972
Blodgett220242018
Bolckow219771974
Barks220212021
Osage Beach220012001
Kirksville220051997
Graniteville219961996
Frankford220221990
Deventer120221971
Pulaski120212021

Mallard Population Trend in Other States

alabamaalaskaarizonaarkansascaliforniacoloradoconnecticutdelawarefloridageorgiaidahoillinoisindianaiowakansaskentuckylouisianamainemarylandmassachusettsmichiganminnesotamississippimontananebraskanevadanew-hampshirenew-jerseynew-mexiconew-yorknorth-carolinanorth-dakotaohiooklahomaoregonpennsylvaniarhode-islandsouth-carolinasouth-dakotatennesseetexasutahvermontvirginiawashingtonwest-virginiawisconsinwyoming

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