Species · BCR 19 · BBS 2025 Release · 1966–2024
Green Heron In Central Mixed Grass Prairie
Green Heron in Central Mixed Grass Prairie has held roughly steady: down 9% on the route-weighted index since 1969.
-9%Since 1969
81Routes In Region
57Years
Notable Signals
No notable trend signals for Green Heron in Central Mixed Grass Prairie. See the full index history below.
Forecast
If the recent trend holds, Green Heron in Central Mixed Grass Prairie is projected to rise about 11% by 2029 — from 0.07 in 2024 to a central estimate of 0.08 (95% range 0.00–0.26). A 5-year backtest shows a typical error of ±55.3%, with 100% of held-out values landing inside the 95% band.
+11%Change by 2029
0.08Projected 2029 index
0.00–0.2695% range
±55.3%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 0.10 | 0.00 | 0.28 |
| 2026 | 0.09 | 0.00 | 0.27 |
| 2027 | 0.09 | 0.00 | 0.27 |
| 2028 | 0.09 | 0.00 | 0.26 |
| 2029 | 0.08 | 0.00 | 0.26 |
Routes In Central Mixed Grass Prairie
| Albert | KANSAS | 6 | 1993 |
| Verden | OKLAHOMA | 4 | 2017 |
| Solomon | KANSAS | 3 | 2010 |
| Piester Lake | NEBRASKA | 3 | 1976 |
| Reed | OKLAHOMA | 3 | 1996 |
| Ft Sill East | OKLAHOMA | 3 | 1994 |
| Weinert | TEXAS | 3 | 1993 |
| Dalton | KANSAS | 2 | 2005 |
| Coldwater | KANSAS | 2 | 1982 |
| Leoville | KANSAS | 2 | 2012 |
| Liberty | NEBRASKA | 2 | 1981 |
| Kearney | NEBRASKA | 2 | 2022 |
| Stratton | NEBRASKA | 2 | 2018 |
| Hendley | NEBRASKA | 2 | 2023 |
| Douglas | OKLAHOMA | 2 | 2009 |
| Lookout | OKLAHOMA | 2 | 2022 |
| Woodward | OKLAHOMA | 2 | 2017 |
| Childress | TEXAS | 2 | 1983 |
| Hawley | TEXAS | 2 | 2007 |
| Shields 2 | TEXAS | 2 | 2021 |
| Wellington | KANSAS | 1 | 1991 |
| Coats | KANSAS | 1 | 2009 |
| Ashland | KANSAS | 1 | 2017 |
| Chapman | KANSAS | 1 | 1977 |
| Buckeye | KANSAS | 1 | 2014 |
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.