Species · New Mexico · BBS 2025 Release · 1966–2024
Grace's Warbler Population Trend in New Mexico
Grace's Warbler in New Mexico has risen sharply: up 66% on the route-weighted index since 1970.
+66%Since 1970
23Routes In State
53Years
Notable Grace's Warbler Trends in New Mexico
long arc increasecomputed index
Grace's Warbler has risen sharply in New Mexico: up 66% on the route-weighted index since 1970.
Grace's Warbler Population Forecast in New Mexico
If the recent trend holds, Grace's Warbler in New Mexico is projected to rise about 79% by 2029 — from 0.91 in 2024 to a central estimate of 1.6 (95% range 0.94–2.3). A 5-year backtest shows a typical error of ±50.1%, with 60% of held-out values landing inside the 95% band.
+79%Change by 2029
1.6Projected 2029 index
0.94–2.395% range
±50.1%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 1.5 | 0.85 | 2.2 |
| 2026 | 1.6 | 0.88 | 2.3 |
| 2027 | 1.6 | 0.90 | 2.3 |
| 2028 | 1.6 | 0.92 | 2.3 |
| 2029 | 1.6 | 0.94 | 2.3 |
Grace's Warbler Survey Routes in New Mexico
| Bluewater Lake | 30 | 2021 | 1999 |
| Reserve | 15 | 2023 | 1993 |
| Gallinas | 12 | 2021 | 1992 |
| Mt. Taylor | 10 | 2012 | 1993 |
| Cebolla | 9 | 2023 | 1973 |
| Cloudcroft | 9 | 2024 | 1981 |
| Mt. Taylor 2 | 7 | 2024 | 2014 |
| Vallecitos | 7 | 2024 | 1994 |
| Angel Fire 2 | 6 | 2024 | 2007 |
| Ojo Sarco | 4 | 2024 | 1968 |
| Carrizozo | 2 | 2024 | 1977 |
| Vicks Peak | 2 | 2021 | 1992 |
| Pinon | 2 | 2024 | 1992 |
| Claunch 2 | 2 | 2024 | 2001 |
| Pecos | 1 | 2015 | 1973 |
| Fence Lake | 1 | 1978 | 1978 |
| Claunch | 1 | 2000 | 1978 |
| Horse Mtn | 1 | 2024 | 1969 |
| Dulce | 1 | 2024 | 2013 |
| Stinking Lk. | 1 | 1999 | 1994 |
| Angel Fire | 1 | 2001 | 1992 |
| Mcgaffey | 1 | 2023 | 1995 |
| Emory Pass | 1 | 2024 | 1993 |
Grace's Warbler Population Trend in Other States
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.