Species · BCR 23 · BBS 2025 Release · 1966–2024
Gray Partridge In Prairie Hardwood Transition
Gray Partridge in Prairie Hardwood Transition has fallen sharply: down 71% on the route-weighted index since 1968.
-71%Since 1968
28Routes In Region
39Years
Notable Signals
long arc declinecomputed index
Gray Partridge has fallen sharply in Prairie Hardwood Transition: down 71% on the route-weighted index since 1968.
Forecast
If the recent trend holds, Gray Partridge in Prairie Hardwood Transition is projected to stay roughly flat through 2029, near 0.00 (95% range 0.00–0.09). A 5-year backtest shows a typical error of ±55.2%, with 100% of held-out values landing inside the 95% band.
n/aChange by 2029
0.00Projected 2029 index
0.00–0.0995% range
±55.2%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 0.01 | 0.00 | 0.10 |
| 2026 | 0.01 | 0.00 | 0.10 |
| 2027 | 0.00 | 0.00 | 0.10 |
| 2028 | 0.00 | 0.00 | 0.10 |
| 2029 | 0.00 | 0.00 | 0.09 |
Routes In Prairie Hardwood Transition
| Beaver Dam | WISCONSIN | 8 | 1993 |
| Whitewater 2 | MINNESOTA | 4 | 2015 |
| Money Creek | MINNESOTA | 3 | 1993 |
| Rolling Pr | WISCONSIN | 3 | 1974 |
| Guilford | ILLINOIS | 2 | 1989 |
| Cherry Val | ILLINOIS | 2 | 1992 |
| Chatfield | MINNESOTA | 2 | 1986 |
| Knapp | MINNESOTA | 2 | 1983 |
| Edwards | MINNESOTA | 2 | 1992 |
| New London | MINNESOTA | 2 | 2007 |
| Manitowoc | WISCONSIN | 2 | 1981 |
| Newburg Crns | WISCONSIN | 2 | 1978 |
| Pt Washingtn | WISCONSIN | 2 | 2002 |
| Hazel Green | WISCONSIN | 2 | 2013 |
| Wiota | WISCONSIN | 2 | 1990 |
| Festina | IOWA | 1 | 2024 |
| Millville | MINNESOTA | 1 | 2012 |
| St Stephen | MINNESOTA | 1 | 1973 |
| Caledonia 2 | MINNESOTA | 1 | 2024 |
| Manawa | WISCONSIN | 1 | 1986 |
| Omro | WISCONSIN | 1 | 1982 |
| Clintonville | WISCONSIN | 1 | 1974 |
| Casco | WISCONSIN | 1 | 2000 |
| N Freedom | WISCONSIN | 1 | 1984 |
| Brownsville | WISCONSIN | 1 | 1993 |
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.