Species · BCR 10 · BBS 2025 Release · 1966–2024
American Avocet In Northern Rockies
American Avocet in Northern Rockies has edged up: up 18% on the route-weighted index since 1980.
+18%Since 1980
55Routes In Region
43Years
Notable Signals
No notable trend signals for American Avocet in Northern Rockies. See the full index history below.
Forecast
If the recent trend holds, American Avocet in Northern Rockies is projected to stay roughly flat through 2029, near 0.17 (95% range 0.00–0.40). A 5-year backtest shows a typical error of ±337.6%, with 100% of held-out values landing inside the 95% band.
n/aChange by 2029
0.17Projected 2029 index
0.00–0.4095% range
±337.6%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 0.17 | 0.00 | 0.41 |
| 2026 | 0.17 | 0.00 | 0.41 |
| 2027 | 0.17 | 0.00 | 0.40 |
| 2028 | 0.17 | 0.00 | 0.40 |
| 2029 | 0.17 | 0.00 | 0.40 |
Routes In Northern Rockies
| Beaverhead | MONTANA | 42 | 2012 |
| Glen | MONTANA | 32 | 2014 |
| Rock River | WYOMING | 17 | 2022 |
| Horse Creek | WYOMING | 16 | 2022 |
| Neponset Res | UTAH | 11 | 2018 |
| Colter Bay | WYOMING | 9 | 1997 |
| Alpine | WYOMING | 9 | 2000 |
| Anchor | WYOMING | 9 | 2016 |
| Wise River | MONTANA | 8 | 2012 |
| Green River | WYOMING | 8 | 1982 |
| Salmon River | IDAHO | 7 | 1988 |
| Polson | MONTANA | 7 | 1997 |
| Dubois | WYOMING | 7 | 2012 |
| Painted Rock | MONTANA | 6 | 2002 |
| Moose | WYOMING | 6 | 2017 |
| Lovell | WYOMING | 6 | 1999 |
| Mammoth | WYOMING | 5 | 2024 |
| Ne Entrance | WYOMING | 4 | 2016 |
| Flamin Gorge | WYOMING | 4 | 2022 |
| Yellowstone | WYOMING | 4 | 2015 |
| Randolph | UTAH | 3 | 2021 |
| Fontenelle | WYOMING | 3 | 2023 |
| Lamont | WYOMING | 3 | 1999 |
| Rock Springs | WYOMING | 3 | 2012 |
| Crane Creek | IDAHO | 2 | 2014 |
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.