BirdAnalyst
Species · BCR 33 · BBS 2025 Release · 1966–2024

Western Screech-Owl In Sonoran and Mojave Deserts

All regionsSonoran and Mojave DesertsGeneralists

Western Screech-Owl in Sonoran and Mojave Deserts has fallen sharply: down 59% on the route-weighted index since 1992.

-59%Since 1992
13Routes In Region
19Years

Notable Signals

long arc declinecomputed index

Western Screech-Owl has fallen sharply in Sonoran and Mojave Deserts: down 59% on the route-weighted index since 1992.

Forecast

If the recent trend holds, Western Screech-Owl in Sonoran and Mojave Deserts is projected to stay roughly flat through 2028, near 0.02 (95% range 0.00–0.07). A 5-year backtest shows a typical error of ±17.2%, with 100% of held-out values landing inside the 95% band.

n/aChange by 2028
0.02Projected 2028 index
0.00–0.0795% range
±17.2%Backtest error
19732028
Projection of the recent trend (dashed) with 80/95% bands — a projection, not a prediction. Habitat, climate, and land use are not modeled.
YearProjected index95% low95% high
20240.030.000.07
20250.030.000.07
20260.030.000.07
20270.030.000.07
20280.020.000.07

Routes In Sonoran and Mojave Deserts

Routes recording Western Screech-Owl in Sonoran and Mojave Deserts.
WikieupARIZONA11997
LagunaARIZONA11985
RivieraARIZONA12011
Alamo Res.ARIZONA12021
Gila BendARIZONA12002
Red RockARIZONA12014
Casa GrandeARIZONA12011
Ajo 2ARIZONA12019
Cactus ForestARIZONA12005
Organ PipeARIZONA12003
Cutter 2ARIZONA12015
Palo VerdeCALIFORNIA12013
Kelso ValleyCALIFORNIA12023

Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.