Species · BCR 12 · BBS 2025 Release · 1966–2024
Turkey Vulture In Boreal Hardwood Transition
Turkey Vulture in Boreal Hardwood Transition has surged: up 500% on the route-weighted index since 1969.
+500%Since 1969
109Routes In Region
54Years
Notable Signals
long arc increasecomputed index
Turkey Vulture has surged in Boreal Hardwood Transition: up 500% on the route-weighted index since 1969.
Forecast
If the recent trend holds, Turkey Vulture in Boreal Hardwood Transition is projected to fall about 16% by 2029 — from 0.85 in 2024 to a central estimate of 0.72 (95% range 0.41–1.0). A 5-year backtest shows a typical error of ±25.8%, with 100% of held-out values landing inside the 95% band.
-16%Change by 2029
0.72Projected 2029 index
0.41–1.095% range
±25.8%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 0.67 | 0.36 | 0.98 |
| 2026 | 0.68 | 0.37 | 0.99 |
| 2027 | 0.69 | 0.38 | 1.0 |
| 2028 | 0.71 | 0.40 | 1.0 |
| 2029 | 0.72 | 0.41 | 1.0 |
Routes In Boreal Hardwood Transition
| Pleasant Valley 2 | MICHIGAN | 13 | 2024 |
| Skeels | MICHIGAN | 8 | 2015 |
| Isabella 2 | MICHIGAN | 8 | 2021 |
| Lake City | MICHIGAN | 7 | 2015 |
| Pickford | MICHIGAN | 6 | 2024 |
| Ontonagon | MICHIGAN | 5 | 2019 |
| Crystal Fls | MICHIGAN | 5 | 2022 |
| Skegemog Pt | MICHIGAN | 5 | 2024 |
| Beaver Lake | MICHIGAN | 5 | 2011 |
| Hubbard Lake | MICHIGAN | 5 | 1990 |
| Walloon Lake 2 | MICHIGAN | 5 | 2024 |
| Herron | MICHIGAN | 5 | 2013 |
| Hovland | MINNESOTA | 5 | 2023 |
| Rib Lake | WISCONSIN | 5 | 2017 |
| Cunard | MICHIGAN | 4 | 2021 |
| Warroad | MINNESOTA | 4 | 2024 |
| Phillips | WISCONSIN | 4 | 2023 |
| Frederic 2 | MICHIGAN | 3 | 2014 |
| Imp Lake | MICHIGAN | 3 | 2016 |
| Hiawatha Nf | MICHIGAN | 3 | 2021 |
| Blackduck | MINNESOTA | 3 | 2005 |
| Nebish | MINNESOTA | 3 | 2023 |
| Nett Lake | MINNESOTA | 3 | 2024 |
| Iron River | WISCONSIN | 3 | 2022 |
| Union Twp | WISCONSIN | 3 | 2021 |
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.