Species · New Mexico · BBS 2025 Release · 1966–2024
Violet-green Swallow Population Trend in New Mexico
Violet-green Swallow in New Mexico has declined: down 36% on the route-weighted index since 1970.
-36%Since 1970
54Routes In State
56Years
Notable Violet-green Swallow Trends in New Mexico
No notable trend signals for Violet-green Swallow in New Mexico. See the full index history below.
Violet-green Swallow Population Forecast in New Mexico
If the recent trend holds, Violet-green Swallow in New Mexico is projected to stay roughly flat through 2029, near 3.6 (95% range 0.00–7.7). A 5-year backtest shows a typical error of ±66.6%, with 100% of held-out values landing inside the 95% band.
-2%Change by 2029
3.6Projected 2029 index
0.00–7.795% range
±66.6%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 3.7 | 0.00 | 7.9 |
| 2026 | 3.7 | 0.00 | 7.8 |
| 2027 | 3.7 | 0.00 | 7.8 |
| 2028 | 3.6 | 0.00 | 7.8 |
| 2029 | 3.6 | 0.00 | 7.7 |
Violet-green Swallow Survey Routes in New Mexico
| Maxwell | 293 | 1997 | 1997 |
| Gallinas | 40 | 2024 | 1992 |
| Cloudcroft | 30 | 2024 | 1975 |
| Ojo Sarco | 27 | 2024 | 1968 |
| Vallecitos | 22 | 2024 | 1994 |
| Bluewater Lake | 19 | 2021 | 1999 |
| Dulce | 15 | 2024 | 2001 |
| Angel Fire | 12 | 2002 | 1992 |
| Mt. Taylor | 9 | 2012 | 1993 |
| Mt. Taylor 2 | 8 | 2024 | 2014 |
| Aztec | 8 | 1989 | 1989 |
| Emory Pass | 7 | 2024 | 1993 |
| Angel Fire 2 | 6 | 2024 | 2005 |
| Shiprock | 6 | 2015 | 1996 |
| Horse Mtn | 5 | 2023 | 1968 |
| Carrizozo | 5 | 2024 | 1968 |
| Counselor | 5 | 2024 | 1992 |
| Quemado | 4 | 1997 | 1997 |
| Corona East | 4 | 1993 | 1993 |
| La Cienega | 3 | 1983 | 1969 |
| Fence Lake | 3 | 2024 | 1975 |
| Capitan Mtn. | 3 | 2015 | 1993 |
| Farmington | 2 | 1987 | 1976 |
| Torreon | 2 | 2018 | 1977 |
| Wagon Mound | 2 | 1976 | 1976 |
Violet-green Swallow Population Trend in Other States
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.