Species · BCR 12 · BBS 2025 Release · 1966–2024
American Wigeon In Boreal Hardwood Transition
American Wigeon in Boreal Hardwood Transition has declined: down 48% on the route-weighted index since 1983.
-48%Since 1983
4Routes In Region
29Years
Notable Signals
No notable trend signals for American Wigeon in Boreal Hardwood Transition. See the full index history below.
Forecast
If the recent trend holds, American Wigeon in Boreal Hardwood Transition is projected to stay roughly flat through 2023, near 0.02 (95% range 0.00–0.09). A 5-year backtest shows a typical error of ±127.8%, with 100% of held-out values landing inside the 95% band.
n/aChange by 2023
0.02Projected 2023 index
0.00–0.0995% range
±127.8%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2019 | 0.02 | 0.00 | 0.10 |
| 2020 | 0.02 | 0.00 | 0.10 |
| 2021 | 0.02 | 0.00 | 0.09 |
| 2022 | 0.02 | 0.00 | 0.09 |
| 2023 | 0.02 | 0.00 | 0.09 |
Routes In Boreal Hardwood Transition
| Cromwell | MINNESOTA | 2 | 1967 |
| Greenbush | MINNESOTA | 2 | 2009 |
| Pickford | MICHIGAN | 1 | 2016 |
| Pine River | MINNESOTA | 1 | 2018 |
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.