Species · Ohio · BBS 2025 Release · 1966–2024
Alder Flycatcher Population Trend in Ohio
Alder Flycatcher in Ohio has collapsed: down 82% on the route-weighted index since 1975.
-82%Since 1975
16Routes In State
30Years
Notable Alder Flycatcher Trends in Ohio
long arc declinecomputed index
Alder Flycatcher has collapsed in Ohio: down 82% on the route-weighted index since 1975.
Alder Flycatcher Population Forecast in Ohio
If the recent trend holds, Alder Flycatcher in Ohio is projected to stay roughly flat through 2028, near 0.00 (95% range 0.00–0.07). A 5-year backtest shows a typical error of ±144.1%, with 100% of held-out values landing inside the 95% band.
n/aChange by 2028
0.00Projected 2028 index
0.00–0.0795% range
±144.1%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2024 | 0.00 | 0.00 | 0.07 |
| 2025 | 0.00 | 0.00 | 0.07 |
| 2026 | 0.00 | 0.00 | 0.07 |
| 2027 | 0.00 | 0.00 | 0.07 |
| 2028 | 0.00 | 0.00 | 0.07 |
Alder Flycatcher Survey Routes in Ohio
| Garrettsvile | 3 | 1988 | 1975 |
| Bloomville | 2 | 2007 | 2007 |
| Pittsfield | 2 | 2014 | 1992 |
| Omega | 1 | 1993 | 1992 |
| Meadowbrook | 1 | 1993 | 1993 |
| Limestone | 1 | 2003 | 2003 |
| Mohican S.F. | 1 | 2023 | 2023 |
| Wayland | 1 | 2009 | 1997 |
| Middlefield | 1 | 2003 | 1973 |
| Strongsville | 1 | 1976 | 1973 |
| Cumberland | 1 | 2015 | 2015 |
| Hiram | 1 | 2013 | 1992 |
| Lenox | 1 | 1981 | 1976 |
| Herner Crns | 1 | 2022 | 1985 |
| Kalida | 1 | 1996 | 1996 |
| Keene | 1 | 1995 | 1993 |
Alder Flycatcher Population Trend in Other States
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.