Species · BCR 10 · BBS 2025 Release · 1966–2024
Clark's Grebe In Northern Rockies
Clark's Grebe in Northern Rockies has fallen sharply: down 59% on the route-weighted index since 1996.
-59%Since 1996
15Routes In Region
23Years
Notable Signals
No notable trend signals for Clark's Grebe in Northern Rockies. See the full index history below.
Forecast
If the recent trend holds, Clark's Grebe in Northern Rockies is projected to stay roughly flat through 2028, near 0.03 (95% range 0.00–0.13). A 5-year backtest shows a typical error of ±831.8%, with 100% of held-out values landing inside the 95% band.
n/aChange by 2028
0.03Projected 2028 index
0.00–0.1395% range
±831.8%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2024 | 0.03 | 0.00 | 0.13 |
| 2025 | 0.03 | 0.00 | 0.13 |
| 2026 | 0.03 | 0.00 | 0.13 |
| 2027 | 0.03 | 0.00 | 0.13 |
| 2028 | 0.03 | 0.00 | 0.13 |
Routes In Northern Rockies
| Crazy Woman | WYOMING | 5 | 2004 |
| Rock River | WYOMING | 5 | 1999 |
| Neponset Res | UTAH | 2 | 2016 |
| Moose | WYOMING | 2 | 1990 |
| Alpine | WYOMING | 2 | 2005 |
| Cabarton | IDAHO | 1 | 1988 |
| Featherville | IDAHO | 1 | 1990 |
| Painted Rock | MONTANA | 1 | 2002 |
| Hebgen Lake | MONTANA | 1 | 2023 |
| Saleratus Cr | UTAH | 1 | 2011 |
| E. Bear Lake | UTAH | 1 | 2001 |
| Fontenelle | WYOMING | 1 | 2002 |
| Fiddler Lk | WYOMING | 1 | 2001 |
| Walcott | WYOMING | 1 | 2001 |
| Yellowstone | WYOMING | 1 | 2021 |
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.