Species · BCR 12 · BBS 2025 Release · 1966–2024
Boreal Chickadee In Boreal Hardwood Transition
Boreal Chickadee in Boreal Hardwood Transition has fallen sharply: down 72% on the route-weighted index since 1973.
-72%Since 1973
27Routes In Region
40Years
Notable Signals
long arc declinecomputed index
Boreal Chickadee has fallen sharply in Boreal Hardwood Transition: down 72% on the route-weighted index since 1973.
Forecast
If the recent trend holds, Boreal Chickadee in Boreal Hardwood Transition is projected to stay roughly flat through 2029, near 0.03 (95% range 0.00–0.09). A 5-year backtest shows a typical error of ±45.4%, with 100% of held-out values landing inside the 95% band.
n/aChange by 2029
0.03Projected 2029 index
0.00–0.0995% range
±45.4%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 0.03 | 0.00 | 0.09 |
| 2026 | 0.03 | 0.00 | 0.09 |
| 2027 | 0.03 | 0.00 | 0.09 |
| 2028 | 0.03 | 0.00 | 0.09 |
| 2029 | 0.03 | 0.00 | 0.09 |
Routes In Boreal Hardwood Transition
| Ned Lake | MICHIGAN | 2 | 1987 |
| Cunard | MICHIGAN | 2 | 1982 |
| Tahquamenon | MICHIGAN | 2 | 1974 |
| Sawbill Camp | MINNESOTA | 2 | 2010 |
| Babbitt | MINNESOTA | 2 | 2022 |
| Shanagolden | WISCONSIN | 2 | 2000 |
| Bergland | MICHIGAN | 1 | 1990 |
| Gibbs City | MICHIGAN | 1 | 2017 |
| Ishpeming | MICHIGAN | 1 | 1984 |
| Brocky Lake | MICHIGAN | 1 | 2004 |
| Wilson | MICHIGAN | 1 | 2002 |
| Isabella | MICHIGAN | 1 | 1975 |
| Raco | MICHIGAN | 1 | 1992 |
| Imp Lake | MICHIGAN | 1 | 1999 |
| Pine River | MICHIGAN | 1 | 2014 |
| Cromwell | MINNESOTA | 1 | 1996 |
| Hovland | MINNESOTA | 1 | 1981 |
| Lockport | MINNESOTA | 1 | 2018 |
| Sawbill Lndg | MINNESOTA | 1 | 2024 |
| Hart Lake | MINNESOTA | 1 | 2010 |
| Crane Lake | MINNESOTA | 1 | 2005 |
| Jordan | MINNESOTA | 1 | 2022 |
| Red Lake | MINNESOTA | 1 | 2012 |
| Irma | WISCONSIN | 1 | 1981 |
| Eagle River | WISCONSIN | 1 | 1997 |
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.