Species · Wisconsin · BBS 2025 Release · 1966–2024
Olive-sided Flycatcher Population Trend in Wisconsin
Olive-sided Flycatcher in Wisconsin has collapsed: down 81% on the route-weighted index since 1968.
-81%Since 1968
41Routes In State
47Years
Notable Olive-sided Flycatcher Trends in Wisconsin
long arc declinecomputed index
Olive-sided Flycatcher has collapsed in Wisconsin: down 81% on the route-weighted index since 1968.
Olive-sided Flycatcher Population Forecast in Wisconsin
If the recent trend holds, Olive-sided Flycatcher in Wisconsin is projected to stay roughly flat through 2029, near 0.01 (95% range 0.00–0.08). A 5-year backtest shows a typical error of ±85%, with 100% of held-out values landing inside the 95% band.
n/aChange by 2029
0.01Projected 2029 index
0.00–0.0895% range
±85%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 0.02 | 0.00 | 0.08 |
| 2026 | 0.02 | 0.00 | 0.08 |
| 2027 | 0.01 | 0.00 | 0.08 |
| 2028 | 0.01 | 0.00 | 0.08 |
| 2029 | 0.01 | 0.00 | 0.08 |
Olive-sided Flycatcher Survey Routes in Wisconsin
| Union Twp | 3 | 1986 | 1985 |
| Minong | 2 | 2004 | 1983 |
| Exeland | 2 | 1988 | 1972 |
| Stetsonville | 2 | 1997 | 1994 |
| Chaffey | 1 | 2015 | 1968 |
| Iron River | 1 | 1993 | 1967 |
| Grand View | 1 | 1993 | 1977 |
| Bayfield | 1 | 1994 | 1967 |
| Shanagolden | 1 | 2005 | 1977 |
| Montreal | 1 | 2021 | 1977 |
| Land O Lakes | 1 | 2002 | 1979 |
| Hudson | 1 | 1970 | 1970 |
| Dresser | 1 | 1968 | 1968 |
| Loraine | 1 | 2009 | 1974 |
| Cumberland | 1 | 2005 | 2005 |
| Weyerhauser | 1 | 1966 | 1966 |
| Couderay | 1 | 2009 | 2009 |
| Gilman | 1 | 2015 | 2009 |
| Phillips | 1 | 1997 | 1993 |
| Rib Lake | 1 | 1995 | 1986 |
| Irma | 1 | 2009 | 2009 |
| Mcnaughton | 1 | 1997 | 1970 |
| Eagle River | 1 | 2004 | 1968 |
| Popple River | 1 | 1995 | 1971 |
| Crandon | 1 | 1981 | 1981 |
Olive-sided Flycatcher Population Trend in Other States
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.