Flamingo

American Flamingo, Phoenicopterus ruber as already pointed out by Jellis. Here are some from your neighborhood (Laguna rosada):
http://www.projectnoah.org/spottings/154...
Please, change the scientific name with your link in the scientific field by editing the spotting.

Thanks (=

Nice shots but making them creative doesn't help with the ID.
This is what I found but not sure if this is the correct species.
http://www.flamingoresources.org/carflam...