BirdAnalyst
Species · BCR 26 · BBS 2025 Release · 1966–2024

Snowy Egret In Mississippi Alluvial Valley

All regionsMississippi Alluvial ValleyWetland birds

Snowy Egret in Mississippi Alluvial Valley has surged: up 28× on the route-weighted index since 1975.

28×Since 1975
50Routes In Region
49Years

Notable Signals

long arc increasecomputed index

Snowy Egret has surged in Mississippi Alluvial Valley: up 28× on the route-weighted index since 1975.

Forecast

If the recent trend holds, Snowy Egret in Mississippi Alluvial Valley is projected to rise about 36% by 2029 — from 2.4 in 2024 to a central estimate of 3.3 (95% range 0.00–13). A 5-year backtest shows a typical error of ±115.3%, with 100% of held-out values landing inside the 95% band.

+36%Change by 2029
3.3Projected 2029 index
0.00–1395% range
±115.3%Backtest error
19732029
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
20253.20.0013
20263.20.0013
20273.30.0013
20283.30.0013
20293.30.0013

Routes In Mississippi Alluvial Valley

Routes recording Snowy Egret in Mississippi Alluvial Valley.
Rayville 2LOUISIANA472023
ShawLOUISIANA212024
TiptonvilleTENNESSEE212011
RamahLOUISIANA192024
TippoMISSISSIPPI132009
GibsonLOUISIANA112015
HarrisburgARKANSAS102012
FreetownLOUISIANA82000
Morgan CityLOUISIANA81986
Eagle LakeMISSISSIPPI72024
CarlisleLOUISIANA61988
FrogmoreLOUISIANA62024
Port AllenLOUISIANA62024
Panther Swamp NwrMISSISSIPPI62018
MayflowerLOUISIANA52024
Morgan CityLOUISIANA52022
River RoadLOUISIANA52024
AtchafalayaLOUISIANA52019
KraemerLOUISIANA42024
MoonMISSISSIPPI42009
DeventerMISSOURI42011
UlmARKANSAS32024
BrousvilleLOUISIANA32023
Tchula 3MISSISSIPPI32024
Delta N.F.MISSISSIPPI32021

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