Species · Arizona · BBS 2025 Release · 1966–2024
Pyrrhuloxia Population Trend in Arizona
Pyrrhuloxia in Arizona has surged: up 208% on the route-weighted index since 1970.
+208%Since 1970
28Routes In State
56Years
Notable Pyrrhuloxia Trends in Arizona
long arc increasecomputed index
Pyrrhuloxia has surged in Arizona: up 208% on the route-weighted index since 1970.
Pyrrhuloxia Population Forecast in Arizona
If the recent trend holds, Pyrrhuloxia in Arizona is projected to rise about 18% by 2029 — from 0.66 in 2024 to a central estimate of 0.77 (95% range 0.28–1.3). A 5-year backtest shows a typical error of ±31.9%, with 100% of held-out values landing inside the 95% band.
+18%Change by 2029
0.77Projected 2029 index
0.28–1.395% range
±31.9%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 0.74 | 0.24 | 1.2 |
| 2026 | 0.75 | 0.25 | 1.2 |
| 2027 | 0.76 | 0.26 | 1.3 |
| 2028 | 0.77 | 0.27 | 1.3 |
| 2029 | 0.77 | 0.28 | 1.3 |
Pyrrhuloxia Survey Routes in Arizona
| Sahuarita | 13 | 2024 | 1992 |
| Bates Well | 6 | 2023 | 2016 |
| Redington | 6 | 2023 | 1993 |
| Mcneal | 6 | 2023 | 1992 |
| Dragoon | 5 | 2009 | 1993 |
| Florence | 5 | 1968 | 1968 |
| Organ Pipe | 4 | 2023 | 2003 |
| Red Rock 2 | 4 | 2024 | 2015 |
| Casa Grande | 3 | 2018 | 1994 |
| Portal | 2 | 2024 | 1992 |
| Pomerene | 2 | 2024 | 1971 |
| San Simon | 2 | 2022 | 1979 |
| Lukeville | 2 | 1976 | 1975 |
| Sunizona | 2 | 1996 | 1970 |
| Amado | 2 | 2022 | 1993 |
| Sunizona 2 | 2 | 2024 | 2001 |
| Rucker | 1 | 2003 | 2003 |
| New River | 1 | 2015 | 2015 |
| Ajo | 1 | 1995 | 1969 |
| Coolidge | 1 | 1984 | 1974 |
| Peña Blanca | 1 | 2021 | 1977 |
| Patagonia | 1 | 2012 | 1969 |
| Red Rock | 1 | 2011 | 1992 |
| Cabeza Priet | 1 | 2008 | 1994 |
| Wickenburg | 1 | 2023 | 2021 |
Pyrrhuloxia Population Trend in Other States
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.