Species · BCR 25 · BBS 2025 Release · 1966–2024
Little Blue Heron In West Gulf Coastal Plain / Ouachitas
Little Blue Heron in West Gulf Coastal Plain / Ouachitas has collapsed: down 92% on the route-weighted index since 1969.
-92%Since 1969
88Routes In Region
57Years
Notable Signals
long arc declinecomputed index
Little Blue Heron has collapsed in West Gulf Coastal Plain / Ouachitas: down 92% on the route-weighted index since 1969.
Forecast
If the recent trend holds, Little Blue Heron in West Gulf Coastal Plain / Ouachitas is projected to fall about 100% by 2029 — from 0.57 in 2024 to a central estimate of 0.00 (95% range 0.00–2.5). A 5-year backtest shows a typical error of ±62.3%, with 100% of held-out values landing inside the 95% band.
-100%Change by 2029
0.00Projected 2029 index
0.00–2.595% range
±62.3%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 0.00 | 0.00 | 2.5 |
| 2026 | 0.00 | 0.00 | 2.5 |
| 2027 | 0.00 | 0.00 | 2.5 |
| 2028 | 0.00 | 0.00 | 2.5 |
| 2029 | 0.00 | 0.00 | 2.5 |
Routes In West Gulf Coastal Plain / Ouachitas
| Natchitoches | LOUISIANA | 27 | 1991 |
| Derry | LOUISIANA | 19 | 1989 |
| Poyen | ARKANSAS | 14 | 2006 |
| Easton | LOUISIANA | 14 | 1990 |
| Poyen 2 | ARKANSAS | 9 | 2011 |
| Derry 2 | LOUISIANA | 9 | 2024 |
| Fillmore | LOUISIANA | 6 | 1989 |
| Hollywood | ARKANSAS | 5 | 1998 |
| Flat Creek | LOUISIANA | 5 | 2007 |
| Pocola | OKLAHOMA | 5 | 2006 |
| Oakdale | LOUISIANA | 4 | 1994 |
| Natchez | LOUISIANA | 4 | 2024 |
| Evelyn | LOUISIANA | 4 | 2024 |
| Lake Cove | LOUISIANA | 4 | 2018 |
| Canadian | OKLAHOMA | 4 | 2003 |
| Goodwater | OKLAHOMA | 4 | 2021 |
| Bon Wier | TEXAS | 4 | 2024 |
| Lance Rosier Bith | TEXAS | 4 | 2017 |
| Ramsey | ARKANSAS | 3 | 1996 |
| Cypress | LOUISIANA | 3 | 1987 |
| De Quincy | LOUISIANA | 3 | 2017 |
| Pine Prairie | LOUISIANA | 3 | 1997 |
| Crows | ARKANSAS | 2 | 1986 |
| Stark | ARKANSAS | 2 | 2005 |
| Nance | ARKANSAS | 2 | 2006 |
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.