Species · BCR 12 · BBS 2025 Release · 1966–2024
Wilson's Warbler In Boreal Hardwood Transition
Wilson's Warbler in Boreal Hardwood Transition has edged down: down 20% on the route-weighted index since 1986.
-20%Since 1986
20Routes In Region
37Years
Notable Signals
No notable trend signals for Wilson's Warbler in Boreal Hardwood Transition. See the full index history below.
Forecast
If the recent trend holds, Wilson's Warbler in Boreal Hardwood Transition is projected to stay roughly flat through 2029, near 0.05 (95% range 0.00–0.12). A 5-year backtest shows a typical error of ±445.5%, with 100% of held-out values landing inside the 95% band.
n/aChange by 2029
0.05Projected 2029 index
0.00–0.1295% range
±445.5%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 0.05 | 0.00 | 0.12 |
| 2026 | 0.05 | 0.00 | 0.12 |
| 2027 | 0.05 | 0.00 | 0.12 |
| 2028 | 0.05 | 0.00 | 0.12 |
| 2029 | 0.05 | 0.00 | 0.12 |
Routes In Boreal Hardwood Transition
| Greenbush | MINNESOTA | 9 | 2013 |
| Hovland | MINNESOTA | 4 | 1991 |
| Scott'S Marsh | MICHIGAN | 2 | 2009 |
| Lude | MINNESOTA | 2 | 2010 |
| Nett Lake | MINNESOTA | 2 | 2014 |
| Bootjack | MICHIGAN | 1 | 1998 |
| Muskallonge | MICHIGAN | 1 | 2011 |
| Gilchrist | MICHIGAN | 1 | 2015 |
| Raco | MICHIGAN | 1 | 2001 |
| Ensign | MICHIGAN | 1 | 2009 |
| Lockport | MINNESOTA | 1 | 2009 |
| Sawbill Lndg | MINNESOTA | 1 | 2005 |
| Waskish | MINNESOTA | 1 | 1981 |
| Mcgregor | MINNESOTA | 1 | 2023 |
| Sawbill Camp | MINNESOTA | 1 | 2018 |
| Jordan | MINNESOTA | 1 | 2022 |
| Glendale | MINNESOTA | 1 | 2022 |
| Red Lake | MINNESOTA | 1 | 2024 |
| Warroad | MINNESOTA | 1 | 2012 |
| Iron River | WISCONSIN | 1 | 2008 |
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.