Species · BCR 23 · BBS 2025 Release · 1966–2024
Purple Finch In Prairie Hardwood Transition
Purple Finch in Prairie Hardwood Transition has declined: down 34% on the route-weighted index since 1968.
-34%Since 1968
44Routes In Region
58Years
Notable Signals
No notable trend signals for Purple Finch in Prairie Hardwood Transition. See the full index history below.
Forecast
If the recent trend holds, Purple Finch in Prairie Hardwood Transition is projected to stay roughly flat through 2029, near 0.06 (95% range 0.00–0.15). A 5-year backtest shows a typical error of ±97.4%, with 100% of held-out values landing inside the 95% band.
-3%Change by 2029
0.06Projected 2029 index
0.00–0.1595% range
±97.4%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 0.06 | 0.00 | 0.16 |
| 2026 | 0.06 | 0.00 | 0.15 |
| 2027 | 0.06 | 0.00 | 0.15 |
| 2028 | 0.06 | 0.00 | 0.15 |
| 2029 | 0.06 | 0.00 | 0.15 |
Routes In Prairie Hardwood Transition
| Dresser | WISCONSIN | 4 | 2012 |
| Tyre | MICHIGAN | 3 | 1978 |
| Bismark | OHIO | 3 | 1987 |
| Princeton | MINNESOTA | 2 | 2005 |
| Evergreen | MINNESOTA | 2 | 2023 |
| Merrill | WISCONSIN | 2 | 2024 |
| Stratford | WISCONSIN | 2 | 2012 |
| Oconto Falls | WISCONSIN | 2 | 2022 |
| Gresham | WISCONSIN | 2 | 2024 |
| Scottville | MICHIGAN | 1 | 2017 |
| Big Blue Lk | MICHIGAN | 1 | 2022 |
| Big Rapids | MICHIGAN | 1 | 1988 |
| Coopersville | MICHIGAN | 1 | 2012 |
| Belding | MICHIGAN | 1 | 2003 |
| Remus | MICHIGAN | 1 | 2024 |
| No Bradley | MICHIGAN | 1 | 2014 |
| Ola | MICHIGAN | 1 | 2016 |
| Juniata | MICHIGAN | 1 | 2010 |
| Deckerville | MICHIGAN | 1 | 2004 |
| Hungerford | MICHIGAN | 1 | 2024 |
| Belding 2 | MICHIGAN | 1 | 2013 |
| Chippewa Lk. | MICHIGAN | 1 | 2016 |
| Edwards | MINNESOTA | 1 | 2016 |
| Brook Park | MINNESOTA | 1 | 2007 |
| Loraine | WISCONSIN | 1 | 2021 |
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.