Species · BCR 9 · BBS 2025 Release · 1966–2024
Lincoln's Sparrow In Great Basin
Lincoln's Sparrow in Great Basin has collapsed: down 90% on the route-weighted index since 1973.
-90%Since 1973
30Routes In Region
53Years
Notable Signals
long arc declinecomputed index
Lincoln's Sparrow has collapsed in Great Basin: down 90% on the route-weighted index since 1973.
Forecast
If the recent trend holds, Lincoln's Sparrow in Great Basin is projected to fall about 100% by 2029 — from 0.12 in 2024 to a central estimate of 0.00 (95% range 0.00–0.83). A 5-year backtest shows a typical error of ±168.8%, with 100% of held-out values landing inside the 95% band.
-100%Change by 2029
0.00Projected 2029 index
0.00–0.8395% range
±168.8%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 0.00 | 0.00 | 0.83 |
| 2026 | 0.00 | 0.00 | 0.83 |
| 2027 | 0.00 | 0.00 | 0.83 |
| 2028 | 0.00 | 0.00 | 0.83 |
| 2029 | 0.00 | 0.00 | 0.83 |
Routes In Great Basin
| Walker Can | NEVADA | 99 | 1968 |
| Rimrock | WASHINGTON | 5 | 2024 |
| Ronald | WASHINGTON | 5 | 2024 |
| Lake Chelan | WASHINGTON | 5 | 2019 |
| Catlow Rim | OREGON | 3 | 1997 |
| Lakeview | OREGON | 3 | 2024 |
| Joel | IDAHO | 2 | 1991 |
| Iron Springs | IDAHO | 2 | 2023 |
| Paisley | OREGON | 2 | 2024 |
| Fish Lake | OREGON | 2 | 2016 |
| Twisp | WASHINGTON | 2 | 1994 |
| Deep Springs | CALIFORNIA | 1 | 2019 |
| Baker | IDAHO | 1 | 2024 |
| Leadore | IDAHO | 1 | 2023 |
| Squirrel | IDAHO | 1 | 2023 |
| Triangle | IDAHO | 1 | 2012 |
| Magic Mtn | IDAHO | 1 | 2022 |
| Bates | IDAHO | 1 | 2023 |
| Daniels Res | IDAHO | 1 | 1992 |
| Dell Spring | OREGON | 1 | 1986 |
| Wizard Falls | OREGON | 1 | 2005 |
| Bald Mtn. | OREGON | 1 | 2003 |
| Picture Flat | OREGON | 1 | 2022 |
| Hyrum | UTAH | 1 | 1979 |
| Hardware Ranch | UTAH | 1 | 2014 |
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.