Held off posting this image because I was unsure of identification. When 1st posted, identified as a female Brewer's Blackbird.
A year later, on a return trip to the Celery Fields area just East of Sarasota, spotted several similar birds, this time with males during their breeding antics.
Best viewed in 'original' size.
Nikon D700
,AF-S VR Nikkor 70-200mm f2.8G with TC 2.0 E II 1/320s f/7.1 at 600mm iso200
DX Image Free Cropped and Reduced to 180 ppi for Internet Viewing
full exif