Species · BCR 22 · BBS 2025 Release · 1966–2024
Bell's Vireo In Eastern Tallgrass Prairie
Bell's Vireo in Eastern Tallgrass Prairie has risen sharply: up 74% on the route-weighted index since 1968.
+74%Since 1968
169Routes In Region
58Years
Notable Signals
long arc increasecomputed index
Bell's Vireo has risen sharply in Eastern Tallgrass Prairie: up 74% on the route-weighted index since 1968.
Forecast
If the recent trend holds, Bell's Vireo in Eastern Tallgrass Prairie is projected to fall about 22% by 2029 — from 0.81 in 2024 to a central estimate of 0.63 (95% range 0.29–0.97). A 5-year backtest shows a typical error of ±41%, with 20% of held-out values landing inside the 95% band.
-22%Change by 2029
0.63Projected 2029 index
0.29–0.9795% range
±41%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 0.61 | 0.27 | 0.95 |
| 2026 | 0.61 | 0.27 | 0.95 |
| 2027 | 0.62 | 0.28 | 0.96 |
| 2028 | 0.62 | 0.28 | 0.97 |
| 2029 | 0.63 | 0.29 | 0.97 |
Routes In Eastern Tallgrass Prairie
| Trading Post | KANSAS | 12 | 2024 |
| Lincolnville | KANSAS | 11 | 2024 |
| Ohio | MISSOURI | 11 | 2024 |
| Mcfall | MISSOURI | 11 | 2024 |
| Wainwright | OKLAHOMA | 7 | 2013 |
| Frankford | MISSOURI | 6 | 2024 |
| Milford | MISSOURI | 6 | 2024 |
| Thrall | KANSAS | 5 | 1967 |
| Keetonville | OKLAHOMA | 5 | 2022 |
| Chandlervill | ILLINOIS | 4 | 2024 |
| Kell | ILLINOIS | 4 | 2024 |
| Dover | KANSAS | 4 | 2022 |
| Wreford | KANSAS | 4 | 2024 |
| Rockingham | MISSOURI | 4 | 2024 |
| New Point | MISSOURI | 4 | 2024 |
| Beaucoup | ILLINOIS | 3 | 2024 |
| College Spgs 2 | IOWA | 3 | 2023 |
| Humboldt | KANSAS | 3 | 2022 |
| Morehead | KANSAS | 3 | 2024 |
| Severance | KANSAS | 3 | 2024 |
| Rensselaer | MISSOURI | 3 | 2023 |
| Stet | MISSOURI | 3 | 1995 |
| Kahoka | MISSOURI | 3 | 1995 |
| Kearney | MISSOURI | 3 | 2023 |
| Kahoka2 | MISSOURI | 3 | 2024 |
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.