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

Mallard Population Trend in Ohio

All statesWaterfowl

Mallard in Ohio has held roughly steady: up 9% on the route-weighted index since 1968.

+9%Since 1968
81Routes In State
58Years

Notable Mallard Trends in Ohio

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

Mallard Population Forecast in Ohio

If the recent trend holds, Mallard in Ohio is projected to fall about 44% by 2029 — from 2.0 in 2024 to a central estimate of 1.1 (95% range 0.00–6.4). A 5-year backtest shows a typical error of ±132%, with 100% of held-out values landing inside the 95% band.

-44%Change by 2029
1.1Projected 2029 index
0.00–6.495% range
±132%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
20251.40.006.7
20261.30.006.6
20271.30.006.5
20281.20.006.5
20291.10.006.4

Mallard Survey Routes in Ohio

Routes recording Mallard in Ohio.
Bismark8419951967
Lockport6220241971
Wayland5920161992
Newport5619941967
Graytown4419841966
N Baltimore3320191966
Marion1420231980
Harveysburg1319961985
Tecumseh819821966
Botkins720191992
Troy619961980
Lattasburg620191967
Meadowbrook620211984
New Somerset619931974
Birmingham620221992
Kalida520151969
Wilmington519961968
New Marshfld520171969
Scioto Furn520032003
W Carrollton520141989
Kingsway420181966
Strongsville419951967
Lenox420171972
Kings Creek420151992
Kenton420131969

Mallard Population Trend in Other States

alabamaalaskaarizonaarkansascaliforniacoloradoconnecticutdelawarefloridageorgiaidahoillinoisindianaiowakansaskentuckylouisianamainemarylandmassachusettsmichiganminnesotamississippimissourimontananebraskanevadanew-hampshirenew-jerseynew-mexiconew-yorknorth-carolinanorth-dakotaoklahomaoregonpennsylvaniarhode-islandsouth-carolinasouth-dakotatennesseetexasutahvermontvirginiawashingtonwest-virginiawisconsinwyoming

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