Species · BCR 18 · BBS 2025 Release · 1966–2024
Greater Prairie-Chicken In Shortgrass Prairie
Greater Prairie-Chicken in Shortgrass Prairie has surged: up 501% on the route-weighted index since 1986.
+501%Since 1986
6Routes In Region
31Years
Notable Signals
long arc increasecomputed index
Greater Prairie-Chicken has surged in Shortgrass Prairie: up 501% on the route-weighted index since 1986.
Forecast
If the recent trend holds, Greater Prairie-Chicken in Shortgrass Prairie is projected to stay roughly flat through 2028, near 0.16 (95% range 0.00–0.75). A 5-year backtest shows a typical error of ±75.3%, with 80% of held-out values landing inside the 95% band.
n/aChange by 2028
0.16Projected 2028 index
0.00–0.7595% range
±75.3%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2024 | 0.16 | 0.00 | 0.76 |
| 2025 | 0.16 | 0.00 | 0.76 |
| 2026 | 0.16 | 0.00 | 0.76 |
| 2027 | 0.16 | 0.00 | 0.75 |
| 2028 | 0.16 | 0.00 | 0.75 |
Routes In Shortgrass Prairie
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.