Species · BCR 28 · BBS 2025 Release · 1966–2024
Little Blue Heron In Appalachian Mountains
Little Blue Heron in Appalachian Mountains has fallen sharply: down 70% on the route-weighted index since 1970.
-70%Since 1970
13Routes In Region
20Years
Notable Signals
No notable trend signals for Little Blue Heron in Appalachian Mountains. See the full index history below.
Forecast
If the recent trend holds, Little Blue Heron in Appalachian Mountains is projected to stay roughly flat through 2029, near 0.00 (95% range 0.00–0.01). A 5-year backtest shows a typical error of ±30.8%, with 100% of held-out values landing inside the 95% band.
n/aChange by 2029
0.00Projected 2029 index
0.00–0.0195% range
±30.8%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 0.00 | 0.00 | 0.02 |
| 2026 | 0.00 | 0.00 | 0.02 |
| 2027 | 0.00 | 0.00 | 0.01 |
| 2028 | 0.00 | 0.00 | 0.01 |
| 2029 | 0.00 | 0.00 | 0.01 |
Routes In Appalachian Mountains
| Summitt | ALABAMA | 2 | 1981 |
| Smyer Lake | ALABAMA | 2 | 1986 |
| Drummond | ALABAMA | 2 | 2003 |
| Riverside | ALABAMA | 2 | 2007 |
| Trade | ALABAMA | 1 | 1967 |
| Pine Grove | ALABAMA | 1 | 1995 |
| Greensport | ALABAMA | 1 | 2024 |
| Odenville | ALABAMA | 1 | 1996 |
| Brooksville | ALABAMA | 1 | 1986 |
| Talladega | ALABAMA | 1 | 2022 |
| Greentown | PENNSYLVANIA | 1 | 1973 |
| Canadensis | PENNSYLVANIA | 1 | 1978 |
| Peru Mills | PENNSYLVANIA | 1 | 1972 |
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.