Species · BCR 34 · BBS 2025 Release · 1966–2024
Arizona Woodpecker In Sierra Madre Occidental
Arizona Woodpecker in Sierra Madre Occidental has increased: up 48% on the route-weighted index since 1975.
+48%Since 1975
6Routes In Region
50Years
Notable Signals
No notable trend signals for Arizona Woodpecker in Sierra Madre Occidental. See the full index history below.
Forecast
If the recent trend holds, Arizona Woodpecker in Sierra Madre Occidental is projected to fall about 77% by 2029 — from 0.50 in 2024 to a central estimate of 0.12 (95% range 0.00–0.66). A 5-year backtest shows a typical error of ±60.8%, with 100% of held-out values landing inside the 95% band.
-77%Change by 2029
0.12Projected 2029 index
0.00–0.6695% range
±60.8%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 0.14 | 0.00 | 0.68 |
| 2026 | 0.14 | 0.00 | 0.68 |
| 2027 | 0.13 | 0.00 | 0.67 |
| 2028 | 0.12 | 0.00 | 0.67 |
| 2029 | 0.12 | 0.00 | 0.66 |
Routes In Sierra Madre Occidental
| Portal | ARIZONA | 7 | 2024 |
| Peña Blanca | ARIZONA | 2 | 2024 |
| Patagonia | ARIZONA | 2 | 2023 |
| Rucker | ARIZONA | 2 | 2003 |
| Sunizona | ARIZONA | 1 | 1986 |
| Sunizona 2 | ARIZONA | 1 | 2014 |
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.