When I took this shot yesterday morning at Huntley Meadows Park, I assumed it was a female Red-winged Blackbird (Agelaius phoeniceus), because of its color and the pattern of the feathers. At home, though, it became clear that it was an image an immature male who is just starting to gain some of the markings of an adult male—you can just make out the beginnings of the colorful shoulder patch.
© Michael Q. Powell. All rights reserved.
Mike Powell 
Good catch, Mike!
Thanks, Walter. This guy was in stealth mode, unlike most of the males who loudly proclaim their presence.