Species · BCR 23 · BBS 2025 Release · 1966–2024
Warbling Vireo In Prairie Hardwood Transition
Warbling Vireo in Prairie Hardwood Transition has edged up: up 15% on the route-weighted index since 1968.
+15%Since 1968
159Routes In Region
58Years
Notable Signals
No notable trend signals for Warbling Vireo in Prairie Hardwood Transition. See the full index history below.
Forecast
If the recent trend holds, Warbling Vireo in Prairie Hardwood Transition is projected to stay roughly flat through 2029, near 4.9 (95% range 3.8–6.0). A 5-year backtest shows a typical error of ±17.6%, with 40% of held-out values landing inside the 95% band.
-2%Change by 2029
4.9Projected 2029 index
3.8–6.095% range
±17.6%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 4.9 | 3.8 | 6.0 |
| 2026 | 4.9 | 3.8 | 6.0 |
| 2027 | 4.9 | 3.8 | 6.0 |
| 2028 | 4.9 | 3.8 | 6.0 |
| 2029 | 4.9 | 3.8 | 6.0 |
Routes In Prairie Hardwood Transition
| Grimms | WISCONSIN | 19 | 2021 |
| Guilford | ILLINOIS | 16 | 2023 |
| Viroqua | WISCONSIN | 16 | 2024 |
| Trempealeau | WISCONSIN | 15 | 2024 |
| Coopersville | MICHIGAN | 14 | 2024 |
| Fall River | WISCONSIN | 14 | 2024 |
| Richmond | MICHIGAN | 13 | 2024 |
| Stratford | WISCONSIN | 13 | 2024 |
| Annaton | WISCONSIN | 13 | 2024 |
| Paris | WISCONSIN | 12 | 2024 |
| Briggsville | WISCONSIN | 12 | 2024 |
| Galesburg | MICHIGAN | 11 | 2024 |
| Prattville | MICHIGAN | 11 | 2021 |
| Adair | MICHIGAN | 11 | 1995 |
| Chippewa Lk. | MICHIGAN | 11 | 2024 |
| Chatfield 2 | MINNESOTA | 11 | 2024 |
| Newburg Crns | WISCONSIN | 11 | 2023 |
| Kendall | WISCONSIN | 11 | 2023 |
| Wiota | WISCONSIN | 11 | 2024 |
| Prairie Du Chien | WISCONSIN | 11 | 2024 |
| New Buffalo | MICHIGAN | 10 | 2014 |
| Bismark | OHIO | 10 | 1995 |
| Eden | WISCONSIN | 10 | 2024 |
| Hazel Green | WISCONSIN | 10 | 2024 |
| Beloit | WISCONSIN | 10 | 2024 |
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.