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

Western Cattle-Egret In Sonoran and Mojave Deserts

All regionsSonoran and Mojave DesertsWetland birds

Western Cattle-Egret in Sonoran and Mojave Deserts has collapsed: down 79% on the route-weighted index since 1974.

-79%Since 1974
13Routes In Region
52Years

Notable Signals

long arc declinecomputed index

Western Cattle-Egret has collapsed in Sonoran and Mojave Deserts: down 79% on the route-weighted index since 1974.

Forecast

If the recent trend holds, Western Cattle-Egret in Sonoran and Mojave Deserts is projected to stay roughly flat through 2029, near 3.2 (95% range 0.00–19). A 5-year backtest shows a typical error of ±5994.9%, with 100% of held-out values landing inside the 95% band.

n/aChange by 2029
3.2Projected 2029 index
0.00–1995% range
±5994.9%Backtest error
19722029
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
20253.80.0019
20263.70.0019
20273.50.0019
20283.40.0019
20293.20.0019

Routes In Sonoran and Mojave Deserts

Routes recording Western Cattle-Egret in Sonoran and Mojave Deserts.
BrawleyCALIFORNIA2402012
Palo VerdeARIZONA802008
Alamo RiverCALIFORNIA182017
NilandCALIFORNIA92023
ArabyARIZONA32018
Palo Verde 2ARIZONA32022
Palo VerdeCALIFORNIA32015
Imperial DamCALIFORNIA32010
LagunaARIZONA22013
Hope 2ARIZONA22017
Lone PineCALIFORNIA21994
VicksburgARIZONA11988
DatelandARIZONA12024

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