Species · BCR 22 · BBS 2025 Release · 1966–2024
Black Vulture In Eastern Tallgrass Prairie
Black Vulture in Eastern Tallgrass Prairie has surged: up 365% on the route-weighted index since 1995.
+365%Since 1995
19Routes In Region
29Years
Notable Signals
long arc increasecomputed index
Black Vulture has surged in Eastern Tallgrass Prairie: up 365% on the route-weighted index since 1995.
Forecast
If the recent trend holds, Black Vulture in Eastern Tallgrass Prairie is projected to fall about 50% by 2029 — from 0.15 in 2024 to a central estimate of 0.07 (95% range 0.02–0.13). A 5-year backtest shows a typical error of ±51%, with 80% of held-out values landing inside the 95% band.
-50%Change by 2029
0.07Projected 2029 index
0.02–0.1395% range
±51%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 0.07 | 0.01 | 0.12 |
| 2026 | 0.07 | 0.01 | 0.13 |
| 2027 | 0.07 | 0.01 | 0.13 |
| 2028 | 0.07 | 0.01 | 0.13 |
| 2029 | 0.07 | 0.02 | 0.13 |
Routes In Eastern Tallgrass Prairie
| Wainwright | OKLAHOMA | 13 | 2013 |
| Cuba | OHIO | 9 | 2024 |
| Witts Station | INDIANA | 5 | 2024 |
| Milroy | INDIANA | 4 | 1986 |
| Enon | OHIO | 3 | 2024 |
| Columbia | ILLINOIS | 2 | 2024 |
| Sexton | INDIANA | 2 | 2024 |
| Brookville | INDIANA | 2 | 2024 |
| Welch | OKLAHOMA | 2 | 2016 |
| Keetonville | OKLAHOMA | 2 | 2022 |
| Dudleyville | ILLINOIS | 1 | 2021 |
| Shelbyville | INDIANA | 1 | 2024 |
| Wallace | INDIANA | 1 | 2024 |
| Marion | OHIO | 1 | 2022 |
| Fulton | OHIO | 1 | 2024 |
| Darrtown | OHIO | 1 | 2021 |
| Ash Ridge | OHIO | 1 | 2017 |
| Harveysburg 2 | OHIO | 1 | 2023 |
| Peoria | OKLAHOMA | 1 | 2019 |
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.