from WIKI - I looked it up to make sure I remembered what I had 'known' about egret's: The word "egret" comes from the French word "aigrette" that means both "silver heron" and "brush", referring to the long filamentous feathers that seem to cascade down an egret's back during the breeding season. In the early 1900's they, those infamous "they" folks (so it wasn't me nor you - but feather/plume hunters) nearly wiped them out in Florida - so ladies could wear them on their hats - the feathers/aigrettes.
The "great white heron" which breeds in Florida Bay and those parts - has the same build/size and feathering - even to the 'tabs' on it's head in season - as the Great Blue - it does not have the Aigrettes in breeding season - like the Egrets.