Species · BCR 33 · BBS 2025 Release · 1966–2024
American Crow In Sonoran and Mojave Deserts
American Crow in Sonoran and Mojave Deserts has surged: up 391% on the route-weighted index since 1973.
+391%Since 1973
10Routes In Region
39Years
Notable Signals
long arc increasecomputed index
American Crow has surged in Sonoran and Mojave Deserts: up 391% on the route-weighted index since 1973.
Forecast
If the recent trend holds, American Crow in Sonoran and Mojave Deserts is projected to fall about 95% by 2029 — from 1.7 in 2024 to a central estimate of 0.08 (95% range 0.00–1.1). A 5-year backtest shows a typical error of ±470.6%, with 80% of held-out values landing inside the 95% band.
-95%Change by 2029
0.08Projected 2029 index
0.00–1.195% range
±470.6%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 0.09 | 0.00 | 1.1 |
| 2026 | 0.09 | 0.00 | 1.1 |
| 2027 | 0.08 | 0.00 | 1.1 |
| 2028 | 0.08 | 0.00 | 1.1 |
| 2029 | 0.08 | 0.00 | 1.1 |
Routes In Sonoran and Mojave Deserts
| Lucerne Val | CALIFORNIA | 49 | 2024 |
| Kelso Valley | CALIFORNIA | 15 | 1976 |
| Valley Wells | CALIFORNIA | 2 | 2008 |
| Anza Borrego | CALIFORNIA | 2 | 2019 |
| Coachella Cn | CALIFORNIA | 2 | 1978 |
| Lone Pine | CALIFORNIA | 2 | 2009 |
| Laguna | ARIZONA | 1 | 1977 |
| Onyx | CALIFORNIA | 1 | 1976 |
| Lenwood | CALIFORNIA | 1 | 1992 |
| Pearblossom | CALIFORNIA | 1 | 2024 |
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.