Species · BCR 12 · BBS 2025 Release · 1966–2024
Chipping Sparrow In Boreal Hardwood Transition
Chipping Sparrow in Boreal Hardwood Transition has held roughly steady: up 0% on the route-weighted index since 1968.
+0%Since 1968
127Routes In Region
58Years
Notable Signals
No notable trend signals for Chipping Sparrow in Boreal Hardwood Transition. See the full index history below.
Forecast
If the recent trend holds, Chipping Sparrow in Boreal Hardwood Transition is projected to rise about 40% by 2029 — from 13 in 2024 to a central estimate of 18 (95% range 12–23). A 5-year backtest shows a typical error of ±50.5%, with 20% of held-out values landing inside the 95% band.
+40%Change by 2029
18Projected 2029 index
12–2395% range
±50.5%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 18 | 12 | 23 |
| 2026 | 18 | 12 | 23 |
| 2027 | 18 | 12 | 23 |
| 2028 | 18 | 12 | 23 |
| 2029 | 18 | 12 | 23 |
Routes In Boreal Hardwood Transition
| Skeels | MICHIGAN | 53 | 2015 |
| Cunard | MICHIGAN | 49 | 2021 |
| Bagley | MINNESOTA | 44 | 2006 |
| Land O Lakes | WISCONSIN | 36 | 2016 |
| Eagle River | WISCONSIN | 33 | 2024 |
| Wausaukee | WISCONSIN | 33 | 2024 |
| Irma | WISCONSIN | 32 | 2024 |
| Iron River | WISCONSIN | 30 | 2024 |
| Pleasant Valley 2 | MICHIGAN | 29 | 2024 |
| Cedar Run | MICHIGAN | 29 | 1999 |
| Debs | MINNESOTA | 29 | 2024 |
| Gooseneck | MICHIGAN | 28 | 2010 |
| Riggsville | MICHIGAN | 27 | 2019 |
| Walloon Lake | MICHIGAN | 27 | 2004 |
| Union Twp | WISCONSIN | 27 | 2024 |
| Jordan | MINNESOTA | 26 | 2023 |
| Amnicon Falls | WISCONSIN | 25 | 2024 |
| Irons | MICHIGAN | 24 | 1989 |
| Crane Lake | MINNESOTA | 24 | 2024 |
| Pine River | MINNESOTA | 23 | 2024 |
| Bear Lake | MICHIGAN | 22 | 2024 |
| Walloon Lake 2 | MICHIGAN | 22 | 2024 |
| Herron | MICHIGAN | 22 | 2016 |
| Maple Grove | MICHIGAN | 21 | 2024 |
| Ontonagon | MICHIGAN | 20 | 2019 |
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.