Species · BCR 23 · BBS 2025 Release · 1966–2024
Blackburnian Warbler In Prairie Hardwood Transition
Blackburnian Warbler in Prairie Hardwood Transition has held roughly steady: up 2% on the route-weighted index since 1970.
+2%Since 1970
17Routes In Region
41Years
Notable Signals
No notable trend signals for Blackburnian Warbler in Prairie Hardwood Transition. See the full index history below.
Forecast
If the recent trend holds, Blackburnian Warbler in Prairie Hardwood Transition is projected to stay roughly flat through 2029, near 0.03 (95% range 0.00–0.06). A 5-year backtest shows a typical error of ±56.2%, with 40% of held-out values landing inside the 95% band.
n/aChange by 2029
0.03Projected 2029 index
0.00–0.0695% range
±56.2%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 0.03 | 0.00 | 0.06 |
| 2026 | 0.03 | 0.00 | 0.06 |
| 2027 | 0.03 | 0.00 | 0.06 |
| 2028 | 0.03 | 0.00 | 0.06 |
| 2029 | 0.03 | 0.00 | 0.06 |
Routes In Prairie Hardwood Transition
| Pigeon Creek | WISCONSIN | 5 | 2019 |
| Gresham | WISCONSIN | 4 | 2024 |
| Barry S.G.A. | MICHIGAN | 2 | 2006 |
| Indiana Dune | INDIANA | 1 | 2006 |
| Scottville | MICHIGAN | 1 | 2019 |
| Big Blue Lk | MICHIGAN | 1 | 1998 |
| Bravo | MICHIGAN | 1 | 2010 |
| Monterey | MICHIGAN | 1 | 2023 |
| Deckerville | MICHIGAN | 1 | 2009 |
| Allegan Wma | MICHIGAN | 1 | 1997 |
| Princeton | MINNESOTA | 1 | 1970 |
| Evergreen | MINNESOTA | 1 | 2018 |
| Loraine | WISCONSIN | 1 | 2015 |
| Cumberland | WISCONSIN | 1 | 2009 |
| Merrill | WISCONSIN | 1 | 2024 |
| Stevens Pt | WISCONSIN | 1 | 2023 |
| Pt Washingtn | WISCONSIN | 1 | 1972 |
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.