Species · Wyoming · BBS 2025 Release · 1966–2024
Olive-sided Flycatcher Population Trend in Wyoming
Olive-sided Flycatcher in Wyoming has surged: up 93% on the route-weighted index since 1978.
+93%Since 1978
28Routes In State
48Years
Notable Olive-sided Flycatcher Trends in Wyoming
long arc increasecomputed index
Olive-sided Flycatcher has surged in Wyoming: up 93% on the route-weighted index since 1978.
Olive-sided Flycatcher Population Forecast in Wyoming
If the recent trend holds, Olive-sided Flycatcher in Wyoming is projected to rise about 12% by 2029 — from 0.19 in 2024 to a central estimate of 0.21 (95% range 0.07–0.36). A 5-year backtest shows a typical error of ±36%, with 60% of held-out values landing inside the 95% band.
+12%Change by 2029
0.21Projected 2029 index
0.07–0.3695% range
±36%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 0.21 | 0.07 | 0.35 |
| 2026 | 0.21 | 0.07 | 0.35 |
| 2027 | 0.21 | 0.07 | 0.35 |
| 2028 | 0.21 | 0.07 | 0.35 |
| 2029 | 0.21 | 0.07 | 0.36 |
Olive-sided Flycatcher Survey Routes in Wyoming
| Soda Lake | 7 | 2024 | 1995 |
| Ne Entrance | 6 | 2021 | 1982 |
| Colter Bay | 5 | 1999 | 1968 |
| Buckskin Mtn | 3 | 2021 | 1992 |
| Cumberland | 2 | 1978 | 1978 |
| Mammoth | 2 | 2024 | 1987 |
| Bald Mtn | 2 | 2023 | 1994 |
| Wilson | 2 | 2024 | 1979 |
| Horse Creek | 2 | 2024 | 1980 |
| Fox Park | 2 | 2024 | 2015 |
| Ryan Park | 2 | 2023 | 2012 |
| Yellowstone | 1 | 2022 | 2003 |
| Prior Flats | 1 | 1991 | 1991 |
| Sundance | 1 | 1985 | 1985 |
| Dubois | 1 | 2023 | 1984 |
| Savery | 1 | 1993 | 1989 |
| Hunter Peak | 1 | 2024 | 1982 |
| Moose | 1 | 2023 | 1976 |
| Meeteetse | 1 | 2010 | 2010 |
| Crazy Woman | 1 | 2009 | 1981 |
| Moskee | 1 | 1997 | 1997 |
| Alpine | 1 | 2024 | 1979 |
| Fiddler Lk | 1 | 2023 | 1990 |
| Moran | 1 | 2010 | 2004 |
| Warbonnet | 1 | 2023 | 1999 |
Olive-sided Flycatcher Population Trend in Other States
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.