Species · Texas · BBS 2025 Release · 1966–2024
Pyrrhuloxia Population Trend in Texas
Pyrrhuloxia in Texas has collapsed: down 76% on the route-weighted index since 1969.
-76%Since 1969
109Routes In State
57Years
Notable Pyrrhuloxia Trends in Texas
long arc declinecomputed index
Pyrrhuloxia has collapsed in Texas: down 76% on the route-weighted index since 1969.
Pyrrhuloxia Population Forecast in Texas
If the recent trend holds, Pyrrhuloxia in Texas is projected to fall about 76% by 2029 — from 2.4 in 2024 to a central estimate of 0.59 (95% range 0.00–5.0). A 5-year backtest shows a typical error of ±53.1%, with 100% of held-out values landing inside the 95% band.
-76%Change by 2029
0.59Projected 2029 index
0.00–5.095% range
±53.1%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 1.4 | 0.00 | 5.8 |
| 2026 | 1.2 | 0.00 | 5.6 |
| 2027 | 0.97 | 0.00 | 5.4 |
| 2028 | 0.78 | 0.00 | 5.2 |
| 2029 | 0.59 | 0.00 | 5.0 |
Pyrrhuloxia Survey Routes in Texas
| Pecos | 112 | 2017 | 2017 |
| Presidio | 52 | 2023 | 2000 |
| San Ygnacio | 44 | 1985 | 1967 |
| Catarina 2 | 43 | 2017 | 2011 |
| Agua Nueva | 36 | 2023 | 1969 |
| Rachal | 31 | 2023 | 1967 |
| Girvin | 31 | 2024 | 1975 |
| Zapata | 30 | 1987 | 1967 |
| Comstock | 30 | 2023 | 1967 |
| Wink | 27 | 1986 | 1975 |
| Casa Piedra | 27 | 2023 | 1986 |
| Langtry | 25 | 2000 | 1994 |
| Mirando City | 22 | 2024 | 1969 |
| Castolon | 21 | 2024 | 1994 |
| Hot Springs | 20 | 2024 | 1967 |
| Black Gap | 20 | 2023 | 1988 |
| Shafter | 20 | 1985 | 1969 |
| Cavasara Cr. | 20 | 2023 | 1995 |
| Guerra | 19 | 2023 | 1988 |
| Dilley | 18 | 2024 | 2018 |
| Devils R Cyn | 18 | 2024 | 1994 |
| Coyanda Draw | 18 | 2024 | 1994 |
| Van Horn | 18 | 2024 | 2017 |
| Longfellow | 17 | 2024 | 1968 |
| Encinal 2 | 16 | 2024 | 2011 |
Pyrrhuloxia Population Trend in Other States
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.