Species · BCR 12 · BBS 2025 Release · 1966–2024
Red Crossbill In Boreal Hardwood Transition
Red Crossbill in Boreal Hardwood Transition has surged: up 90% on the route-weighted index since 1970.
+90%Since 1970
79Routes In Region
51Years
Notable Signals
long arc increasecomputed index
Red Crossbill has surged in Boreal Hardwood Transition: up 90% on the route-weighted index since 1970.
Forecast
If the recent trend holds, Red Crossbill in Boreal Hardwood Transition is projected to fall about 60% by 2029 — from 1.5 in 2024 to a central estimate of 0.61 (95% range 0.00–1.9). A 5-year backtest shows a typical error of ±317%, with 100% of held-out values landing inside the 95% band.
-60%Change by 2029
0.61Projected 2029 index
0.00–1.995% range
±317%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 0.59 | 0.00 | 1.9 |
| 2026 | 0.60 | 0.00 | 1.9 |
| 2027 | 0.60 | 0.00 | 1.9 |
| 2028 | 0.61 | 0.00 | 1.9 |
| 2029 | 0.61 | 0.00 | 1.9 |
Routes In Boreal Hardwood Transition
| Irma | WISCONSIN | 40 | 2018 |
| Waskish | MINNESOTA | 30 | 1980 |
| Muskallonge | MICHIGAN | 25 | 2024 |
| Brocky Lake | MICHIGAN | 18 | 2007 |
| Gilchrist | MICHIGAN | 17 | 2016 |
| Gibbs City | MICHIGAN | 15 | 2018 |
| Skegemog Pt | MICHIGAN | 15 | 1980 |
| Mcnaughton | WISCONSIN | 15 | 2018 |
| Cohasset | MINNESOTA | 14 | 1973 |
| Hiawatha Nf | MICHIGAN | 13 | 2024 |
| Sherry Lake | MINNESOTA | 12 | 2018 |
| Rhinelander | WISCONSIN | 12 | 2019 |
| Iron River | WISCONSIN | 11 | 2024 |
| Amberg | WISCONSIN | 9 | 2018 |
| Minong | WISCONSIN | 8 | 2018 |
| Montreal | WISCONSIN | 8 | 2024 |
| Mellen | WISCONSIN | 8 | 2024 |
| Cluster Lakes | MICHIGAN | 7 | 2007 |
| Sawbill Camp | MINNESOTA | 7 | 2019 |
| Nebish | MINNESOTA | 7 | 2018 |
| Washington I | WISCONSIN | 7 | 2024 |
| Red Lake | MINNESOTA | 6 | 2024 |
| Shingleton | MICHIGAN | 5 | 2014 |
| Imp Lake | MICHIGAN | 5 | 2018 |
| Rib Lake | WISCONSIN | 5 | 2018 |
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.