Species · BCR 4 · BBS 2025 Release · 1966–2024
American Pipit In BCR 4
American Pipit in BCR 4 has collapsed: down 92% on the route-weighted index since 1986.
-92%Since 1986
10Routes In Region
30Years
Notable Signals
long arc declinecomputed index
American Pipit has collapsed in BCR 4: down 92% on the route-weighted index since 1986.
Forecast
If the recent trend holds, American Pipit in BCR 4 is projected to fall about 100% by 2029 — from 0.08 in 2024 to a central estimate of 0.00 (95% range 0.00–0.65). A 5-year backtest shows a typical error of ±417%, with 100% of held-out values landing inside the 95% band.
-100%Change by 2029
0.00Projected 2029 index
0.00–0.6595% range
±417%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 0.00 | 0.00 | 0.65 |
| 2026 | 0.00 | 0.00 | 0.65 |
| 2027 | 0.00 | 0.00 | 0.65 |
| 2028 | 0.00 | 0.00 | 0.65 |
| 2029 | 0.00 | 0.00 | 0.65 |
Routes In BCR 4
| Tangle Lakes | ALASKA | 5 | 1987 |
| Toklat | ALASKA | 3 | 2024 |
| Maclaren | ALASKA | 2 | 2017 |
| Monahan | ALASKA | 2 | 1996 |
| Livengood | ALASKA | 1 | 2015 |
| Savage | ALASKA | 1 | 2015 |
| Moose Creek | ALASKA | 1 | 1995 |
| Mt. Fairplay | ALASKA | 1 | 2009 |
| Galena (Short) | ALASKA | 1 | 1987 |
| Nabesna Road | ALASKA | 1 | 1997 |
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.