Species · BCR 18 · BBS 2025 Release · 1966–2024
Western Grebe In Shortgrass Prairie
Western Grebe in Shortgrass Prairie has declined: down 37% on the route-weighted index since 1996.
-37%Since 1996
7Routes In Region
19Years
Notable Signals
No notable trend signals for Western Grebe in Shortgrass Prairie. See the full index history below.
Forecast
If the recent trend holds, Western Grebe in Shortgrass Prairie is projected to stay roughly flat through 2024, near 0.00 (95% range 0.00–0.09). A 5-year backtest shows a typical error of ±96.5%, with 80% of held-out values landing inside the 95% band.
n/aChange by 2024
0.00Projected 2024 index
0.00–0.0995% range
±96.5%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2020 | 0.01 | 0.00 | 0.10 |
| 2021 | 0.01 | 0.00 | 0.10 |
| 2022 | 0.01 | 0.00 | 0.10 |
| 2023 | 0.01 | 0.00 | 0.09 |
| 2024 | 0.00 | 0.00 | 0.09 |
Routes In Shortgrass Prairie
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.