Species · Ohio · BBS 2025 Release · 1966–2024
Red-winged Blackbird Population Trend in Ohio
Red-winged Blackbird in Ohio has collapsed: down 75% on the route-weighted index since 1968.
-75%Since 1968
89Routes In State
58Years
Notable Red-winged Blackbird Trends in Ohio
long arc declinecomputed index
Red-winged Blackbird has collapsed in Ohio: down 75% on the route-weighted index since 1968.
Red-winged Blackbird Population Forecast in Ohio
If the recent trend holds, Red-winged Blackbird in Ohio is projected to fall about 83% by 2029 — from 63 in 2024 to a central estimate of 10 (95% range 0.00–78). A 5-year backtest shows a typical error of ±71.5%, with 100% of held-out values landing inside the 95% band.
-83%Change by 2029
10Projected 2029 index
0.00–7895% range
±71.5%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 24 | 0.00 | 91 |
| 2026 | 21 | 0.00 | 88 |
| 2027 | 17 | 0.00 | 85 |
| 2028 | 14 | 0.00 | 81 |
| 2029 | 10 | 0.00 | 78 |
Red-winged Blackbird Survey Routes in Ohio
| Winterset | 427 | 1983 | 1967 |
| Harveysburg | 303 | 1996 | 1966 |
| Wilmington | 302 | 1996 | 1966 |
| Napoleon | 241 | 2024 | 1966 |
| Garrettsvile | 237 | 1991 | 1966 |
| N Baltimore | 195 | 2019 | 1966 |
| Bismark | 162 | 1995 | 1967 |
| Dunlap | 152 | 1988 | 1966 |
| Tecumseh | 147 | 1982 | 1966 |
| Kunkle | 139 | 2024 | 1992 |
| Newport | 137 | 1994 | 1966 |
| Hiram | 137 | 2021 | 1992 |
| Graytown | 133 | 1984 | 1966 |
| Cumberland | 131 | 2017 | 1966 |
| Darrtown | 128 | 2021 | 1966 |
| Ash Ridge | 128 | 2021 | 1992 |
| New Dover | 120 | 2022 | 1966 |
| Rome | 120 | 2024 | 1966 |
| Stonecreek | 120 | 2024 | 1996 |
| Botkins | 109 | 2019 | 1992 |
| Wayland | 103 | 2017 | 1992 |
| Casstown | 100 | 2024 | 2000 |
| Pittsfield | 96 | 2024 | 1992 |
| No Kenton | 95 | 2024 | 1966 |
| Marion | 95 | 2023 | 1966 |
Red-winged Blackbird Population Trend in Other States
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Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.