This is the only juvenile I saw in my week's stay in St Petersburg, Florida
He/she was perched on a hedge between the bay and a condo complex
The juvenile is white and has light green legs until they reach maturity in a couple of years
Nikon D800
,AF-S VR Nikkor 70-200mm f2.8G with TC-20 E II 1/400s f/22.0 at 195.0mm iso200
full exif