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

Mallard Population Trend in Kansas

All statesWaterfowl

Mallard in Kansas has collapsed: down 79% on the route-weighted index since 1969.

-79%Since 1969
52Routes In State
57Years

Notable Mallard Trends in Kansas

long arc declinecomputed index

Mallard has collapsed in Kansas: down 79% on the route-weighted index since 1969.

Mallard Population Forecast in Kansas

If the recent trend holds, Mallard in Kansas is projected to rise about 146% by 2029 — from 0.35 in 2024 to a central estimate of 0.85 (95% range 0.00–2.1). A 5-year backtest shows a typical error of ±176.6%, with 100% of held-out values landing inside the 95% band.

+146%Change by 2029
0.85Projected 2029 index
0.00–2.195% range
±176.6%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
20250.900.002.2
20260.890.002.2
20270.880.002.2
20280.860.002.2
20290.850.002.1

Mallard Survey Routes in Kansas

Routes recording Mallard in Kansas.
Leoti2020172003
Hanover519731973
Logan520191967
Lapland420211992
Missler420191975
Hodges420142000
Plymell420242000
Ashland320181978
Olathe320161979
Hays320081970
Grantville320211979
Rock Creek320052005
Galesburg219871987
Humboldt220022002
Jewell 2220212021
Wellington220241982
Lakin220151967
Dover220212002
Wreford220161998
Gray220191986
Jewell220011978
Gove220131985
Berwet220242000
Hopewell220132000
Goessel220172000

Mallard Population Trend in Other States

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

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