BD, nice pics. I believe that the Purple Swamphen is an introduced species and not a cross. They are native to just about every other part of the world except North America. One theory is that they were introduced during Hurricane Andrew in 1992 when a number escaped from various private "collections", including the Miami Zoo (go figure?).
I was about to amend the post about the same thing...they are considered an invasive species much like the Egyptian Goose...and there were some of them in the same area as where these were taken. Thanks for the update of info.
Egyptian Geese - now I didn't know that these were present in Florida. I also read that they have captured some Nile Crocodiles in Everglades - Yikes, what's this world coming to! Sounds like Florida is becoming a "dumping" ground for folks who buy exotic pets and then don't want them after they get too big or too expensive to handle.