Species · BCR 33 · BBS 2025 Release · 1966–2024
Black Phoebe In Sonoran and Mojave Deserts
Black Phoebe in Sonoran and Mojave Deserts has surged: up 827% on the route-weighted index since 1971.
+827%Since 1971
32Routes In Region
55Years
Notable Signals
long arc increasecomputed index
Black Phoebe has surged in Sonoran and Mojave Deserts: up 827% on the route-weighted index since 1971.
Forecast
If the recent trend holds, Black Phoebe in Sonoran and Mojave Deserts is projected to rise about 50% by 2029 — from 0.97 in 2024 to a central estimate of 1.4 (95% range 0.88–2.0). A 5-year backtest shows a typical error of ±25.2%, with 100% of held-out values landing inside the 95% band.
+50%Change by 2029
1.4Projected 2029 index
0.88–2.095% range
±25.2%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 1.4 | 0.80 | 1.9 |
| 2026 | 1.4 | 0.82 | 2.0 |
| 2027 | 1.4 | 0.84 | 2.0 |
| 2028 | 1.4 | 0.86 | 2.0 |
| 2029 | 1.4 | 0.88 | 2.0 |
Routes In Sonoran and Mojave Deserts
| Niland | CALIFORNIA | 28 | 2024 |
| Alamo River | CALIFORNIA | 13 | 2018 |
| Imperial Dam | CALIFORNIA | 4 | 2010 |
| Dateland | ARIZONA | 3 | 2016 |
| Brawley | CALIFORNIA | 3 | 2012 |
| Alamo Res. | ARIZONA | 2 | 2015 |
| Palo Verde | ARIZONA | 2 | 2013 |
| Araby | ARIZONA | 2 | 2023 |
| Palo Verde 2 | ARIZONA | 2 | 2023 |
| Willow Beach 2 | ARIZONA | 2 | 2018 |
| Onyx | CALIFORNIA | 2 | 2015 |
| Glamis | CALIFORNIA | 2 | 2018 |
| Ft Irwin | CALIFORNIA | 2 | 1977 |
| Florence | ARIZONA | 1 | 1976 |
| Laguna | ARIZONA | 1 | 2016 |
| Ajo | ARIZONA | 1 | 1995 |
| Riviera | ARIZONA | 1 | 2016 |
| Red Rock | ARIZONA | 1 | 1993 |
| Casa Grande | ARIZONA | 1 | 2022 |
| Cactus Forest | ARIZONA | 1 | 2000 |
| Cutter 2 | ARIZONA | 1 | 2017 |
| Red Rock 2 | ARIZONA | 1 | 2016 |
| Palo Verde | CALIFORNIA | 1 | 2023 |
| Anza Borrego | CALIFORNIA | 1 | 2016 |
| Lenwood | CALIFORNIA | 1 | 1993 |
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.