Species · Arizona · BBS 2025 Release · 1966–2024
Scaled Quail Population Trend in Arizona
Scaled Quail in Arizona has held roughly steady: up 1% on the route-weighted index since 1970.
+1%Since 1970
11Routes In State
54Years
Notable Scaled Quail Trends in Arizona
No notable trend signals for Scaled Quail in Arizona. See the full index history below.
Scaled Quail Population Forecast in Arizona
If the recent trend holds, Scaled Quail in Arizona is projected to fall about 33% by 2029 — from 1.0 in 2024 to a central estimate of 0.67 (95% range 0.00–2.4). A 5-year backtest shows a typical error of ±128.7%, with 100% of held-out values landing inside the 95% band.
-33%Change by 2029
0.67Projected 2029 index
0.00–2.495% range
±128.7%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 0.73 | 0.00 | 2.4 |
| 2026 | 0.71 | 0.00 | 2.4 |
| 2027 | 0.70 | 0.00 | 2.4 |
| 2028 | 0.68 | 0.00 | 2.4 |
| 2029 | 0.67 | 0.00 | 2.4 |
Scaled Quail Survey Routes in Arizona
Scaled Quail Population Trend in Other States
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.