Species · BCR 12 · BBS 2025 Release · 1966–2024
Indigo Bunting In Boreal Hardwood Transition
Indigo Bunting in Boreal Hardwood Transition has edged up: up 15% on the route-weighted index since 1968.
+15%Since 1968
122Routes In Region
58Years
Notable Signals
No notable trend signals for Indigo Bunting in Boreal Hardwood Transition. See the full index history below.
Forecast
If the recent trend holds, Indigo Bunting in Boreal Hardwood Transition is projected to fall about 26% by 2029 — from 11 in 2024 to a central estimate of 7.8 (95% range 4.2–11). A 5-year backtest shows a typical error of ±16.5%, with 100% of held-out values landing inside the 95% band.
-26%Change by 2029
7.8Projected 2029 index
4.2–1195% range
±16.5%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 7.8 | 4.3 | 11 |
| 2026 | 7.8 | 4.3 | 11 |
| 2027 | 7.8 | 4.2 | 11 |
| 2028 | 7.8 | 4.2 | 11 |
| 2029 | 7.8 | 4.2 | 11 |
Routes In Boreal Hardwood Transition
| Bayfield | WISCONSIN | 37 | 2024 |
| Riggsville | MICHIGAN | 33 | 2019 |
| Walloon Lake | MICHIGAN | 33 | 2004 |
| Wausaukee | WISCONSIN | 33 | 2024 |
| Pleasant Valley 2 | MICHIGAN | 31 | 2024 |
| Cunard | MICHIGAN | 30 | 2021 |
| Iron River | WISCONSIN | 30 | 2024 |
| Weirgor Springs | WISCONSIN | 30 | 2024 |
| Washington I | WISCONSIN | 29 | 2024 |
| Hollister | WISCONSIN | 28 | 2024 |
| Cedar Run | MICHIGAN | 25 | 1999 |
| Amberg | WISCONSIN | 24 | 2024 |
| Bear Lake | MICHIGAN | 23 | 2024 |
| Walloon Lake 2 | MICHIGAN | 23 | 2024 |
| Irma | WISCONSIN | 22 | 2024 |
| Amnicon Falls | WISCONSIN | 22 | 2024 |
| Wilson | MICHIGAN | 21 | 2010 |
| Ontonagon | MICHIGAN | 20 | 2019 |
| Herman | MICHIGAN | 20 | 2022 |
| Skeels | MICHIGAN | 20 | 2015 |
| Crystal Fls | MICHIGAN | 19 | 2024 |
| Bashaw | WISCONSIN | 19 | 2024 |
| Pickford | MICHIGAN | 18 | 2024 |
| Wigwam Bay | MINNESOTA | 18 | 2023 |
| Shanagolden | WISCONSIN | 17 | 2024 |
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.