Species · BCR 22 · BBS 2025 Release · 1966–2024
Great Egret In Eastern Tallgrass Prairie
Great Egret in Eastern Tallgrass Prairie has surged: up 117% on the route-weighted index since 1968.
+117%Since 1968
93Routes In Region
50Years
Notable Signals
long arc increasecomputed index
Great Egret has surged in Eastern Tallgrass Prairie: up 117% on the route-weighted index since 1968.
Forecast
If the recent trend holds, Great Egret in Eastern Tallgrass Prairie is projected to rise about 25% by 2029 — from 0.30 in 2024 to a central estimate of 0.37 (95% range 0.01–0.73). A 5-year backtest shows a typical error of ±160%, with 100% of held-out values landing inside the 95% band.
+25%Change by 2029
0.37Projected 2029 index
0.01–0.7395% range
±160%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 0.35 | 0.00 | 0.71 |
| 2026 | 0.36 | 0.00 | 0.72 |
| 2027 | 0.36 | 0.01 | 0.72 |
| 2028 | 0.37 | 0.01 | 0.73 |
| 2029 | 0.37 | 0.01 | 0.73 |
Routes In Eastern Tallgrass Prairie
| Gulfport | ILLINOIS | 127 | 2013 |
| Belleview | ILLINOIS | 36 | 2024 |
| Rock Creek | KANSAS | 29 | 2014 |
| Shannon | ILLINOIS | 14 | 1993 |
| Keetonville | OKLAHOMA | 14 | 2022 |
| Chandlervill | ILLINOIS | 12 | 1974 |
| Mt Vernon | ILLINOIS | 8 | 2006 |
| Trading Post | KANSAS | 8 | 2024 |
| Lake Summerset | ILLINOIS | 7 | 2008 |
| Mascoutah Lk | ILLINOIS | 5 | 2023 |
| New Point | MISSOURI | 5 | 2022 |
| Eldred | ILLINOIS | 4 | 2004 |
| Yorkville | ILLINOIS | 4 | 2018 |
| Geneseo | ILLINOIS | 3 | 2014 |
| Pawnee | ILLINOIS | 3 | 2000 |
| Seneca | ILLINOIS | 3 | 2013 |
| Duncan Mills | ILLINOIS | 3 | 2002 |
| Gary | INDIANA | 3 | 1998 |
| Hebron | INDIANA | 3 | 1996 |
| Bryant | IOWA | 3 | 2016 |
| Sioux City | IOWA | 3 | 2016 |
| Melrose | KANSAS | 3 | 2023 |
| Wreford | KANSAS | 3 | 2014 |
| Rockingham | MISSOURI | 3 | 2018 |
| Norborne | MISSOURI | 3 | 2022 |
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.