Species · BCR 4 · BBS 2025 Release · 1966–2024
Lesser Yellowlegs In BCR 4
Lesser Yellowlegs in BCR 4 has edged down: down 21% on the route-weighted index since 1982.
-21%Since 1982
61Routes In Region
44Years
Notable Signals
No notable trend signals for Lesser Yellowlegs in BCR 4. See the full index history below.
Forecast
If the recent trend holds, Lesser Yellowlegs in BCR 4 is projected to fall about 23% by 2029 — from 1.6 in 2024 to a central estimate of 1.3 (95% range 0.00–3.9). A 5-year backtest shows a typical error of ±28.9%, with 100% of held-out values landing inside the 95% band.
-23%Change by 2029
1.3Projected 2029 index
0.00–3.995% range
±28.9%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 1.5 | 0.00 | 4.1 |
| 2026 | 1.4 | 0.00 | 4.0 |
| 2027 | 1.4 | 0.00 | 4.0 |
| 2028 | 1.3 | 0.00 | 3.9 |
| 2029 | 1.3 | 0.00 | 3.9 |
Routes In BCR 4
| Sourdough | ALASKA | 16 | 2024 |
| Monahan | ALASKA | 10 | 2021 |
| Bear Creek | ALASKA | 9 | 1991 |
| Mud River | ALASKA | 9 | 2024 |
| Kenny Lake | ALASKA | 8 | 2004 |
| Pinoche Tral (Short) | ALASKA | 8 | 1984 |
| Northway | ALASKA | 7 | 2023 |
| Koyukuk Riv. | ALASKA | 6 | 2001 |
| Kanuti Lake | ALASKA | 6 | 2024 |
| Paxson Lake | ALASKA | 6 | 1997 |
| Lake Louise | ALASKA | 5 | 2014 |
| Petersville | ALASKA | 5 | 2023 |
| Cantwell | ALASKA | 4 | 2021 |
| Chena River | ALASKA | 4 | 1988 |
| Burma Road | ALASKA | 4 | 2024 |
| Hather Creek | ALASKA | 4 | 2024 |
| Galena (Short) | ALASKA | 4 | 2024 |
| Mccarthy Rd2 | ALASKA | 4 | 1999 |
| Nicholai Sl | ALASKA | 3 | 2024 |
| Mcgrath | ALASKA | 3 | 2022 |
| Porcupine R. | ALASKA | 3 | 2002 |
| Kobuk River (Short) | ALASKA | 3 | 1992 |
| Eagle | ALASKA | 2 | 2008 |
| Circle | ALASKA | 2 | 2024 |
| Chistochina | ALASKA | 2 | 2022 |
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.