Species · New Mexico · BBS 2025 Release · 1966–2024
American Dipper Population Trend in New Mexico
American Dipper in New Mexico has fallen sharply: down 63% on the route-weighted index since 1988.
-63%Since 1988
6Routes In State
28Years
Notable American Dipper Trends in New Mexico
long arc declinecomputed index
American Dipper has fallen sharply in New Mexico: down 63% on the route-weighted index since 1988.
American Dipper Population Forecast in New Mexico
If the recent trend holds, American Dipper in New Mexico is projected to stay roughly flat through 2029, near 0.01 (95% range 0.00–0.05). A 5-year backtest shows a typical error of ±14.7%, with 100% of held-out values landing inside the 95% band.
n/aChange by 2029
0.01Projected 2029 index
0.00–0.0595% range
±14.7%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 0.02 | 0.00 | 0.05 |
| 2026 | 0.02 | 0.00 | 0.05 |
| 2027 | 0.02 | 0.00 | 0.05 |
| 2028 | 0.01 | 0.00 | 0.05 |
| 2029 | 0.01 | 0.00 | 0.05 |
American Dipper Survey Routes in New Mexico
| Angel Fire | 2 | 2001 | 1992 |
| Ojo Sarco | 1 | 2024 | 1972 |
| Gallinas | 1 | 1994 | 1994 |
| Angel Fire 2 | 1 | 2006 | 2006 |
| Vallecitos | 1 | 2000 | 2000 |
| Cloudcroft | 1 | 1975 | 1975 |
American Dipper Population Trend in Other States
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.