Species · BCR 12 · BBS 2025 Release · 1966–2024
Black-capped Chickadee In Boreal Hardwood Transition
Black-capped Chickadee in Boreal Hardwood Transition has surged: up 113% on the route-weighted index since 1968.
+113%Since 1968
127Routes In Region
58Years
Notable Signals
long arc increasecomputed index
Black-capped Chickadee has surged in Boreal Hardwood Transition: up 113% on the route-weighted index since 1968.
Forecast
If the recent trend holds, Black-capped Chickadee in Boreal Hardwood Transition is projected to rise about 34% by 2029 — from 11 in 2024 to a central estimate of 15 (95% range 10–19). A 5-year backtest shows a typical error of ±43.6%, with 40% of held-out values landing inside the 95% band.
+34%Change by 2029
15Projected 2029 index
10–1995% range
±43.6%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 14 | 9.5 | 19 |
| 2026 | 14 | 9.6 | 19 |
| 2027 | 14 | 9.7 | 19 |
| 2028 | 15 | 9.9 | 19 |
| 2029 | 15 | 10 | 19 |
Routes In Boreal Hardwood Transition
| Pleasant Valley 2 | MICHIGAN | 36 | 2024 |
| Irma | WISCONSIN | 36 | 2024 |
| Washington I | WISCONSIN | 36 | 2024 |
| Land O Lakes | WISCONSIN | 34 | 2016 |
| Wausaukee | WISCONSIN | 33 | 2024 |
| Walloon Lake 2 | MICHIGAN | 31 | 2024 |
| Cedar Run | MICHIGAN | 28 | 1999 |
| Cunard | MICHIGAN | 26 | 2021 |
| Eagle River | WISCONSIN | 25 | 2024 |
| Union Twp | WISCONSIN | 24 | 2024 |
| Mayfield | MICHIGAN | 23 | 2022 |
| Ontonagon | MICHIGAN | 22 | 2019 |
| Brocky Lake | MICHIGAN | 22 | 2024 |
| Pleasant Val | MICHIGAN | 22 | 1997 |
| Bemidji | MINNESOTA | 21 | 1980 |
| Walloon Lake | MICHIGAN | 19 | 2004 |
| Frederic | MICHIGAN | 19 | 2003 |
| Oberlin | MICHIGAN | 18 | 2015 |
| Sand Lake | MICHIGAN | 18 | 2024 |
| Glendale | MINNESOTA | 18 | 2024 |
| Mcnaughton | WISCONSIN | 18 | 2024 |
| Herman | MICHIGAN | 17 | 2022 |
| Crystal Fls | MICHIGAN | 17 | 2024 |
| Hart Lake | MINNESOTA | 17 | 2024 |
| Floodwood | MINNESOTA | 17 | 2024 |
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.