Species · BCR 22 · BBS 2025 Release · 1966–2024
Carolina Chickadee In Eastern Tallgrass Prairie
Carolina Chickadee in Eastern Tallgrass Prairie has surged: up 154% on the route-weighted index since 1968.
+154%Since 1968
105Routes In Region
58Years
Notable Signals
long arc increasecomputed index
Carolina Chickadee has surged in Eastern Tallgrass Prairie: up 154% on the route-weighted index since 1968.
Forecast
If the recent trend holds, Carolina Chickadee in Eastern Tallgrass Prairie is projected to rise about 18% by 2029 — from 1.2 in 2024 to a central estimate of 1.4 (95% range 0.98–1.8). A 5-year backtest shows a typical error of ±17.4%, with 80% of held-out values landing inside the 95% band.
+18%Change by 2029
1.4Projected 2029 index
0.98–1.895% range
±17.4%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 1.3 | 0.92 | 1.7 |
| 2026 | 1.3 | 0.93 | 1.7 |
| 2027 | 1.3 | 0.95 | 1.7 |
| 2028 | 1.4 | 0.97 | 1.8 |
| 2029 | 1.4 | 0.98 | 1.8 |
Routes In Eastern Tallgrass Prairie
| Keetonville | OKLAHOMA | 26 | 2022 |
| Moselle | MISSOURI | 24 | 2024 |
| Ashley | OHIO | 18 | 2018 |
| Mt Vernon | ILLINOIS | 14 | 2024 |
| Wallace | INDIANA | 13 | 2024 |
| House Springs | MISSOURI | 12 | 2024 |
| Harveysburg | OHIO | 11 | 1996 |
| Bradbury | ILLINOIS | 10 | 2024 |
| St Morgan | ILLINOIS | 10 | 2022 |
| Marion | OHIO | 10 | 2023 |
| Monticello | INDIANA | 9 | 2024 |
| Darrtown | OHIO | 9 | 2021 |
| Witts Station | INDIANA | 8 | 2024 |
| Tecumseh | OHIO | 8 | 1982 |
| Wainwright | OKLAHOMA | 8 | 2013 |
| Reece | KANSAS | 7 | 2024 |
| W Carrollton | OHIO | 7 | 2015 |
| Mascoutah Lk | ILLINOIS | 6 | 2024 |
| Grape Creek | ILLINOIS | 6 | 2024 |
| Swayzee | INDIANA | 6 | 2023 |
| Melrose | KANSAS | 6 | 2023 |
| Humboldt | KANSAS | 6 | 2022 |
| Pittsburg | KANSAS | 6 | 2021 |
| Morehead | KANSAS | 6 | 2024 |
| Westerville | OHIO | 6 | 1983 |
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.