BirdAnalyst
Species · BCR 32 · BBS 2025 Release · 1966–2024

Western Cattle-Egret In Coastal California

All regionsCoastal CaliforniaWetland birds

Western Cattle-Egret in Coastal California has surged: up 256% on the route-weighted index since 1984.

+256%Since 1984
15Routes In Region
31Years

Notable Signals

long arc increasecomputed index

Western Cattle-Egret has surged in Coastal California: up 256% on the route-weighted index since 1984.

Forecast

If the recent trend holds, Western Cattle-Egret in Coastal California is projected to stay roughly flat through 2021, near 0.10 (95% range 0.00–1.1). A 5-year backtest shows a typical error of ±116.1%, with 100% of held-out values landing inside the 95% band.

n/aChange by 2021
0.10Projected 2021 index
0.00–1.195% range
±116.1%Backtest error
19812021
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
20170.160.001.1
20180.140.001.1
20190.130.001.1
20200.110.001.1
20210.100.001.1

Routes In Coastal California

Routes recording Western Cattle-Egret in Coastal California.
ArvinCALIFORNIA132015
ZamoraCALIFORNIA92008
OrlandCALIFORNIA82013
TranquillityCALIFORNIA82001
AtwaterCALIFORNIA42003
WestleyCALIFORNIA42005
BakersfieldCALIFORNIA22004
San YsidroCALIFORNIA21992
HollisterCALIFORNIA21993
OrovilleCALIFORNIA22000
Buena VistaCALIFORNIA21996
PenningtonCALIFORNIA11990
MorenoCALIFORNIA11982
Mark WestCALIFORNIA12016
Staten Is.CALIFORNIA12014

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