Species · BCR 21 · BBS 2025 Release · 1966–2024
Anhinga In Oaks and Prairies
Anhinga in Oaks and Prairies has declined: down 37% on the route-weighted index since 1973.
-37%Since 1973
13Routes In Region
44Years
Notable Signals
No notable trend signals for Anhinga in Oaks and Prairies. See the full index history below.
Forecast
If the recent trend holds, Anhinga in Oaks and Prairies is projected to fall about 47% by 2029 — from 0.06 in 2024 to a central estimate of 0.03 (95% range 0.00–0.12). A 5-year backtest shows a typical error of ±45.5%, with 100% of held-out values landing inside the 95% band.
-47%Change by 2029
0.03Projected 2029 index
0.00–0.1295% range
±45.5%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 0.04 | 0.00 | 0.12 |
| 2026 | 0.04 | 0.00 | 0.12 |
| 2027 | 0.04 | 0.00 | 0.12 |
| 2028 | 0.04 | 0.00 | 0.12 |
| 2029 | 0.03 | 0.00 | 0.12 |
Routes In Oaks and Prairies
| Massey Lake | TEXAS | 2 | 2024 |
| Bonner | TEXAS | 2 | 2017 |
| Campbellton | TEXAS | 1 | 2010 |
| Lockhart | TEXAS | 1 | 2003 |
| Oak Grove | TEXAS | 1 | 1984 |
| Oakwood | TEXAS | 1 | 1979 |
| Ola | TEXAS | 1 | 2024 |
| Dike | TEXAS | 1 | 2012 |
| Oak Grove 2 | TEXAS | 1 | 2021 |
| Cayuga | TEXAS | 1 | 2016 |
| Carlos | TEXAS | 1 | 2018 |
| Mount Zion | TEXAS | 1 | 1998 |
| Creedmore | TEXAS | 1 | 2005 |
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.