Species · BCR 23 · BBS 2025 Release · 1966–2024
Chipping Sparrow In Prairie Hardwood Transition
Chipping Sparrow in Prairie Hardwood Transition has surged: up 178% on the route-weighted index since 1968.
+178%Since 1968
161Routes In Region
58Years
Notable Signals
long arc increasecomputed index
Chipping Sparrow has surged in Prairie Hardwood Transition: up 178% on the route-weighted index since 1968.
Forecast
If the recent trend holds, Chipping Sparrow in Prairie Hardwood Transition is projected to rise about 63% by 2029 — from 17 in 2024 to a central estimate of 28 (95% range 21–36). A 5-year backtest shows a typical error of ±61.5%, with 0% of held-out values landing inside the 95% band.
+63%Change by 2029
28Projected 2029 index
21–3695% range
±61.5%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 27 | 20 | 34 |
| 2026 | 27 | 20 | 35 |
| 2027 | 28 | 20 | 35 |
| 2028 | 28 | 20 | 35 |
| 2029 | 28 | 21 | 36 |
Routes In Prairie Hardwood Transition
| Bell Oak 2 | MICHIGAN | 68 | 2023 |
| Juniata | MICHIGAN | 53 | 2024 |
| Fowlerville | MICHIGAN | 51 | 2019 |
| Cohoctah | MICHIGAN | 50 | 2024 |
| Holt | MICHIGAN | 48 | 2024 |
| Packertown | INDIANA | 46 | 2004 |
| North Branch | MICHIGAN | 45 | 1999 |
| Mukwonago | WISCONSIN | 43 | 2004 |
| Paris | WISCONSIN | 42 | 2024 |
| Fall River | WISCONSIN | 39 | 2024 |
| Brownsville | WISCONSIN | 39 | 2024 |
| Maple Rapids | MICHIGAN | 38 | 2023 |
| Drayton Plns | MICHIGAN | 37 | 1987 |
| Gresham | WISCONSIN | 37 | 2024 |
| Kiel | WISCONSIN | 37 | 2022 |
| Howardsville | MICHIGAN | 34 | 2024 |
| Lapeer | MICHIGAN | 33 | 2024 |
| Knapp | MINNESOTA | 33 | 2024 |
| Pardeeville | WISCONSIN | 33 | 2024 |
| Edwards | MINNESOTA | 31 | 2024 |
| Brook Park | MINNESOTA | 31 | 2024 |
| Hatfield | WISCONSIN | 31 | 1998 |
| Omro | WISCONSIN | 31 | 2001 |
| Casco | WISCONSIN | 31 | 2024 |
| Cherry Val | ILLINOIS | 30 | 2003 |
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.