Species · Ohio · BBS 2025 Release · 1966–2024
American Bittern Population Trend in Ohio
American Bittern in Ohio has held roughly steady: down 8% on the route-weighted index since 1970.
-8%Since 1970
7Routes In State
13Years
Notable American Bittern Trends in Ohio
No notable trend signals for American Bittern in Ohio. See the full index history below.
American Bittern Survey Routes in Ohio
| Lenox | 2 | 1972 | 1972 |
| Graytown | 1 | 1984 | 1982 |
| New Marshfld | 1 | 1974 | 1974 |
| Peru | 1 | 1971 | 1969 |
| Middlefield | 1 | 1992 | 1968 |
| Cumberland | 1 | 1979 | 1979 |
| Herner Crns | 1 | 1981 | 1981 |
American Bittern Population Trend in Other States
alaskacaliforniacoloradoconnecticutdelawarefloridageorgiaidahoillinoisindianaiowakansaslouisianamainemarylandmassachusettsmichiganminnesotamississippimissourimontananebraskanevadanew-hampshirenew-jerseynew-mexiconew-yorknorth-dakotaoklahomaoregonpennsylvaniasouth-carolinasouth-dakotatexasutahvermontvirginiawashingtonwest-virginiawisconsinwyoming
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.