Species · BCR 25 · BBS 2025 Release · 1966–2024
Great Blue Heron In West Gulf Coastal Plain / Ouachitas
Great Blue Heron in West Gulf Coastal Plain / Ouachitas has increased: up 38% on the route-weighted index since 1969.
+38%Since 1969
99Routes In Region
57Years
Notable Signals
No notable trend signals for Great Blue Heron in West Gulf Coastal Plain / Ouachitas. See the full index history below.
Forecast
If the recent trend holds, Great Blue Heron in West Gulf Coastal Plain / Ouachitas is projected to rise about 89% by 2029 — from 0.49 in 2024 to a central estimate of 0.93 (95% range 0.00–2.1). A 5-year backtest shows a typical error of ±137.5%, with 100% of held-out values landing inside the 95% band.
+89%Change by 2029
0.93Projected 2029 index
0.00–2.195% range
±137.5%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 0.95 | 0.00 | 2.1 |
| 2026 | 0.94 | 0.00 | 2.1 |
| 2027 | 0.94 | 0.00 | 2.1 |
| 2028 | 0.93 | 0.00 | 2.1 |
| 2029 | 0.93 | 0.00 | 2.1 |
Routes In West Gulf Coastal Plain / Ouachitas
| Natchitoches | LOUISIANA | 13 | 1991 |
| Easton | TEXAS | 9 | 2013 |
| Cypress | LOUISIANA | 8 | 1987 |
| Sandbluff | OKLAHOMA | 6 | 1995 |
| Athens | TEXAS | 5 | 2024 |
| Chandler | TEXAS | 5 | 2004 |
| Goodwater | OKLAHOMA | 4 | 2021 |
| Smyrna 2 | TEXAS | 4 | 2018 |
| Ramsey | ARKANSAS | 3 | 1997 |
| Crows | ARKANSAS | 3 | 1990 |
| Poyen | ARKANSAS | 3 | 2003 |
| Coal Hill | ARKANSAS | 3 | 2023 |
| Mcalester | OKLAHOMA | 3 | 1991 |
| Canadian | OKLAHOMA | 3 | 2017 |
| Chandler 2 | TEXAS | 3 | 2024 |
| Stamps | ARKANSAS | 2 | 2024 |
| Stark | ARKANSAS | 2 | 2024 |
| Lockesburg | ARKANSAS | 2 | 2018 |
| Nance | ARKANSAS | 2 | 2015 |
| Easton | LOUISIANA | 2 | 1990 |
| Clay | LOUISIANA | 2 | 2016 |
| Many | LOUISIANA | 2 | 1990 |
| Linville | LOUISIANA | 2 | 2015 |
| Grayson | LOUISIANA | 2 | 2011 |
| Phillips | OKLAHOMA | 2 | 2008 |
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.