At first look from a distance, I thought these ducks were Florida Mottled Ducks, a very close cousin to the Mallard Duck. No, they are Mallard Ducks. Mallards usually do not migrate here to Florida in the Summer. These are probably offspring of farm pond escapees. It is illegal here in Florida to release Mallards into the wild without proper permits to do so.
The Florida Fish & Wildlife Commission is very concerned about the hybridization between the native Florida Mottled Ducks and the Mallards, which may eventually lead to the near extinction or complete extinction of the native ducks. I took these pictures on Friday, August 8, 2014 here in my development. By the way, I went by this pond yesterday, and the ducks were not there. Please click on the thumbnail image to see the larger pictures.