Species · Wyoming · BBS 2025 Release · 1966–2024
Common Loon Population Trend in Wyoming
Common Loon in Wyoming has declined: down 47% on the route-weighted index since 1991.
-47%Since 1991
6Routes In State
12Years
Notable Common Loon Trends in Wyoming
No notable trend signals for Common Loon in Wyoming. See the full index history below.
Common Loon Survey Routes in Wyoming
| Crazy Woman | 2 | 2010 | 2010 |
| Alpine | 2 | 1999 | 1999 |
| West Thumb | 2 | 1982 | 1982 |
| Yellowstone | 1 | 2009 | 1991 |
| Fiddler Lk | 1 | 2016 | 1979 |
| Fontenelle | 1 | 2002 | 1982 |
Common Loon Population Trend in Other States
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.