Species · BCR 22 · BBS 2025 Release · 1966–2024
House Finch In Eastern Tallgrass Prairie
House Finch in Eastern Tallgrass Prairie has surged: up 174× on the route-weighted index since 1984.
174×Since 1984
259Routes In Region
42Years
Notable Signals
long arc increasecomputed index
House Finch has surged in Eastern Tallgrass Prairie: up 174× on the route-weighted index since 1984.
Forecast
If the recent trend holds, House Finch in Eastern Tallgrass Prairie is projected to stay roughly flat through 2029, near 4.8 (95% range 1.0–8.5). A 5-year backtest shows a typical error of ±13.6%, with 100% of held-out values landing inside the 95% band.
+3%Change by 2029
4.8Projected 2029 index
1.0–8.595% range
±13.6%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 4.6 | 0.86 | 8.3 |
| 2026 | 4.6 | 0.90 | 8.4 |
| 2027 | 4.7 | 0.94 | 8.4 |
| 2028 | 4.7 | 0.98 | 8.4 |
| 2029 | 4.8 | 1.0 | 8.5 |
Routes In Eastern Tallgrass Prairie
| Wayne | ILLINOIS | 41 | 2024 |
| Plainfield | INDIANA | 36 | 1999 |
| Wilmington | OHIO | 36 | 1996 |
| Dunlap | OHIO | 30 | 1988 |
| Brooklyn | IOWA | 29 | 2018 |
| Newport | OHIO | 29 | 1994 |
| Raymond | WISCONSIN | 29 | 2024 |
| Troy | OHIO | 27 | 1996 |
| Ashley | OHIO | 26 | 2018 |
| Brookville | INDIANA | 25 | 2024 |
| Itasca | ILLINOIS | 24 | 2024 |
| Maplewood | INDIANA | 23 | 2021 |
| Marion 2 | OHIO | 23 | 2024 |
| Sioux City | IOWA | 22 | 2024 |
| New Dover | OHIO | 22 | 2022 |
| Anderson | INDIANA | 21 | 2024 |
| Marion | OHIO | 21 | 2023 |
| Red Rock | IOWA | 20 | 2024 |
| Portage 2 | INDIANA | 17 | 2024 |
| Tipton | INDIANA | 16 | 1992 |
| Moselle | MISSOURI | 16 | 2024 |
| Norwalk | OHIO | 15 | 2024 |
| Enon | OHIO | 15 | 2024 |
| Sheffield | ILLINOIS | 14 | 2024 |
| New Lenox | ILLINOIS | 14 | 2019 |
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.