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

Great Egret In Coastal California

All regionsCoastal CaliforniaWetland birds

Great Egret in Coastal California has surged: up 40× on the route-weighted index since 1971.

40×Since 1971
56Routes In Region
55Years

Notable Signals

long arc increasecomputed index

Great Egret has surged in Coastal California: up 40× on the route-weighted index since 1971.

Forecast

If the recent trend holds, Great Egret in Coastal California is projected to rise about 90% by 2029 — from 1.8 in 2024 to a central estimate of 3.5 (95% range 1.3–5.6). A 5-year backtest shows a typical error of ±82.9%, with 80% of held-out values landing inside the 95% band.

+90%Change by 2029
3.5Projected 2029 index
1.3–5.695% range
±82.9%Backtest error
19682029
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
20253.31.25.5
20263.41.25.5
20273.41.25.6
20283.41.35.6
20293.51.35.6

Routes In Coastal California

Routes recording Great Egret in Coastal California.
GlennCALIFORNIA282023
HughsonCALIFORNIA172024
Staten Is.CALIFORNIA142024
AtwaterCALIFORNIA112012
Collegeville 2CALIFORNIA112023
Ora LomaCALIFORNIA102024
FairfaxCALIFORNIA82024
WestleyCALIFORNIA82024
Buena VistaCALIFORNIA82019
ZamoraCALIFORNIA72024
AthloneCALIFORNIA72007
SisquocCALIFORNIA62000
TranquillityCALIFORNIA62023
PenningtonCALIFORNIA52024
OrlandCALIFORNIA42019
Tracy 2CALIFORNIA42015
Jofegan 2CALIFORNIA42024
PowayCALIFORNIA31977
MoragaCALIFORNIA32024
Bartlett SpsCALIFORNIA32017
Mark WestCALIFORNIA32024
CoyoteCALIFORNIA32023
CopperopolisCALIFORNIA32019
OnealsCALIFORNIA32024
Red BluffCALIFORNIA22019

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