Species · Wyoming · BBS 2025 Release · 1966–2024
American Bittern Population Trend in Wyoming
American Bittern in Wyoming has collapsed: down 90% on the route-weighted index since 1980.
-90%Since 1980
11Routes In State
15Years
Notable American Bittern Trends in Wyoming
long arc declinecomputed index
American Bittern has collapsed in Wyoming: down 90% on the route-weighted index since 1980.
American Bittern Survey Routes in Wyoming
| Lingle | 3 | 1995 | 1995 |
| Cody | 2 | 1991 | 1991 |
| Patrick Draw 2 | 2 | 1982 | 1981 |
| Mtn View | 2 | 1994 | 1980 |
| Hunter Peak | 1 | 2010 | 1994 |
| Lovell | 1 | 2004 | 1993 |
| Seely | 1 | 1999 | 1999 |
| Patrick Draw | 1 | 1979 | 1979 |
| Diamondville | 1 | 1980 | 1978 |
| Mammoth | 1 | 1997 | 1997 |
| Green River | 1 | 1982 | 1978 |
American Bittern Population Trend in Other States
alaskacaliforniacoloradoconnecticutdelawarefloridageorgiaidahoillinoisindianaiowakansaslouisianamainemarylandmassachusettsmichiganminnesotamississippimissourimontananebraskanevadanew-hampshirenew-jerseynew-mexiconew-yorknorth-dakotaohiooklahomaoregonpennsylvaniasouth-carolinasouth-dakotatexasutahvermontvirginiawashingtonwest-virginiawisconsin
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.