I agree with @Austin the Sengi, this looks more like a close-up of a Greater Flamingo rather than a Chilean Flamingo based upon the bill color. The base of the bill in a Chilean Flamingo is much more pale (less red) than this, and the black coloration on the distal end of the bill covers at least half of the bill rather than the tip as it does in the Greater Flamingo. Having said that, this is a great photo regardless of the species! Nice job on this one and all of your other Forth Worth Zoo photos!