Species · BCR 23 · BBS 2025 Release · 1966–2024
Bell's Vireo In Prairie Hardwood Transition
Bell's Vireo in Prairie Hardwood Transition has fallen sharply: down 63% on the route-weighted index since 1971.
-63%Since 1971
26Routes In Region
38Years
Notable Signals
No notable trend signals for Bell's Vireo in Prairie Hardwood Transition. See the full index history below.
Forecast
If the recent trend holds, Bell's Vireo in Prairie Hardwood Transition is projected to stay roughly flat through 2028, near 0.01 (95% range 0.00–0.03). A 5-year backtest shows a typical error of ±44.5%, with 100% of held-out values landing inside the 95% band.
n/aChange by 2028
0.01Projected 2028 index
0.00–0.0395% range
±44.5%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2024 | 0.01 | 0.00 | 0.03 |
| 2025 | 0.01 | 0.00 | 0.03 |
| 2026 | 0.01 | 0.00 | 0.03 |
| 2027 | 0.01 | 0.00 | 0.03 |
| 2028 | 0.01 | 0.00 | 0.03 |
Routes In Prairie Hardwood Transition
| New London | MINNESOTA | 5 | 2000 |
| Trempealeau | WISCONSIN | 2 | 2011 |
| Annaton | WISCONSIN | 2 | 2023 |
| Guilford | ILLINOIS | 1 | 2001 |
| Cherry Val | ILLINOIS | 1 | 1972 |
| Lake Galena | ILLINOIS | 1 | 2013 |
| Kewanna | INDIANA | 1 | 1993 |
| New Troy | MICHIGAN | 1 | 1990 |
| Money Creek | MINNESOTA | 1 | 1976 |
| Chatfield | MINNESOTA | 1 | 1967 |
| Millville | MINNESOTA | 1 | 1979 |
| Chatfield 2 | MINNESOTA | 1 | 2019 |
| Gilmanton | WISCONSIN | 1 | 2007 |
| Mather | WISCONSIN | 1 | 1974 |
| Clintonville | WISCONSIN | 1 | 1996 |
| Newburg Crns | WISCONSIN | 1 | 2015 |
| Viroqua | WISCONSIN | 1 | 1982 |
| Rolling Grnd | WISCONSIN | 1 | 1990 |
| Pardeeville | WISCONSIN | 1 | 1994 |
| Fall River | WISCONSIN | 1 | 2017 |
| N Andover | WISCONSIN | 1 | 2018 |
| Wiota | WISCONSIN | 1 | 1997 |
| Hebron | WISCONSIN | 1 | 2013 |
| Verona | WISCONSIN | 1 | 2015 |
| Highland | WISCONSIN | 1 | 1999 |
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.