Species · BCR 22 · BBS 2025 Release · 1966–2024
Barred Owl In Eastern Tallgrass Prairie
Barred Owl in Eastern Tallgrass Prairie has surged: up 468% on the route-weighted index since 1968.
+468%Since 1968
173Routes In Region
58Years
Notable Signals
long arc increasecomputed index
Barred Owl has surged in Eastern Tallgrass Prairie: up 468% on the route-weighted index since 1968.
Forecast
If the recent trend holds, Barred Owl in Eastern Tallgrass Prairie is projected to stay roughly flat through 2029, near 0.29 (95% range 0.18–0.40). A 5-year backtest shows a typical error of ±20.1%, with 80% of held-out values landing inside the 95% band.
-3%Change by 2029
0.29Projected 2029 index
0.18–0.4095% range
±20.1%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 0.27 | 0.17 | 0.38 |
| 2026 | 0.28 | 0.17 | 0.38 |
| 2027 | 0.28 | 0.17 | 0.39 |
| 2028 | 0.29 | 0.18 | 0.39 |
| 2029 | 0.29 | 0.18 | 0.40 |
Routes In Eastern Tallgrass Prairie
| Mascoutah Lk | ILLINOIS | 5 | 2024 |
| Emden | MISSOURI | 5 | 2024 |
| Keetonville | OKLAHOMA | 5 | 2022 |
| Humboldt | ILLINOIS | 4 | 2019 |
| Camp Point | ILLINOIS | 4 | 2016 |
| Cameron | ILLINOIS | 3 | 2024 |
| Washta | IOWA | 3 | 1978 |
| Humboldt | KANSAS | 3 | 2022 |
| Seneca | KANSAS | 3 | 2021 |
| Trading Post | KANSAS | 3 | 2024 |
| Sni Mills | MISSOURI | 3 | 1990 |
| Mcfall | MISSOURI | 3 | 2024 |
| Frankford | MISSOURI | 3 | 2024 |
| Sheffield | ILLINOIS | 2 | 2024 |
| Monticello | ILLINOIS | 2 | 2000 |
| Athensville | ILLINOIS | 2 | 2023 |
| Belleview | ILLINOIS | 2 | 2024 |
| Robinson | ILLINOIS | 2 | 2023 |
| Seneca | ILLINOIS | 2 | 2019 |
| Payson | ILLINOIS | 2 | 2004 |
| Grape Creek | ILLINOIS | 2 | 2023 |
| Kell | ILLINOIS | 2 | 2024 |
| Thorntown | INDIANA | 2 | 2013 |
| Middletown | INDIANA | 2 | 2024 |
| Exline | IOWA | 2 | 2024 |
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.