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

Spotted Towhee In Sonoran and Mojave Deserts

All regionsSonoran and Mojave DesertsGeneralists

Spotted Towhee in Sonoran and Mojave Deserts has edged up: up 19% on the route-weighted index since 1971.

+19%Since 1971
10Routes In Region
55Years

Notable Signals

No notable trend signals for Spotted Towhee in Sonoran and Mojave Deserts. See the full index history below.

Forecast

If the recent trend holds, Spotted Towhee in Sonoran and Mojave Deserts is projected to rise about 412% by 2029 — from 0.07 in 2024 to a central estimate of 0.34 (95% range 0.00–0.78). A 5-year backtest shows a typical error of ±251.2%, with 100% of held-out values landing inside the 95% band.

+412%Change by 2029
0.34Projected 2029 index
0.00–0.7895% range
±251.2%Backtest error
19692029
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
20250.340.000.78
20260.340.000.78
20270.340.000.78
20280.340.000.78
20290.340.000.78

Routes In Sonoran and Mojave Deserts

Routes recording Spotted Towhee in Sonoran and Mojave Deserts.
OnyxCALIFORNIA52001
Palo VerdeARIZONA21997
Imperial DamCALIFORNIA21984
PearblossomCALIFORNIA22016
Joshua TreeCALIFORNIA21999
Val Of FireNEVADA21992
Anza BorregoCALIFORNIA12007
Lone PineCALIFORNIA12024
Kelso ValleyCALIFORNIA12024
Cholla Gard.CALIFORNIA12015

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