Species · BCR 4 · BBS 2025 Release · 1966–2024
Least Sandpiper In BCR 4
Least Sandpiper in BCR 4 has declined: down 43% on the route-weighted index since 1986.
-43%Since 1986
20Routes In Region
37Years
Notable Signals
No notable trend signals for Least Sandpiper in BCR 4. See the full index history below.
Forecast
If the recent trend holds, Least Sandpiper in BCR 4 is projected to rise about 97% by 2029 — from 0.11 in 2024 to a central estimate of 0.22 (95% range 0.00–0.66). A 5-year backtest shows a typical error of ±351.8%, with 100% of held-out values landing inside the 95% band.
+97%Change by 2029
0.22Projected 2029 index
0.00–0.6695% range
±351.8%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 0.22 | 0.00 | 0.66 |
| 2026 | 0.22 | 0.00 | 0.66 |
| 2027 | 0.22 | 0.00 | 0.66 |
| 2028 | 0.22 | 0.00 | 0.66 |
| 2029 | 0.22 | 0.00 | 0.66 |
Routes In BCR 4
| Anvik River | ALASKA | 7 | 2022 |
| Monahan | ALASKA | 4 | 2016 |
| Hather Creek | ALASKA | 3 | 2024 |
| Kanuti Canyn | ALASKA | 3 | 1995 |
| Ft. Richrdsn | ALASKA | 3 | 2022 |
| Cantwell | ALASKA | 2 | 2013 |
| Kalifonsky | ALASKA | 2 | 1982 |
| Coldfoot | ALASKA | 2 | 2018 |
| Kobuk River (Short) | ALASKA | 2 | 1992 |
| Paxson Lake | ALASKA | 2 | 1997 |
| Maclaren | ALASKA | 1 | 2023 |
| Toklat | ALASKA | 1 | 2019 |
| Petersville | ALASKA | 1 | 2023 |
| Seven Lakes | ALASKA | 1 | 1996 |
| Kachemak | ALASKA | 1 | 1993 |
| Unalakleet River | ALASKA | 1 | 2023 |
| Cottonwood | ALASKA | 1 | 1988 |
| Mud River | ALASKA | 1 | 2022 |
| Kanuti Lake | ALASKA | 1 | 2024 |
| Galena (Short) | ALASKA | 1 | 2022 |
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.