Black, White-faced Heron

My wife spotted a strange 'Black Heron' a week ago on her daily walk and I was unsure what to think of her sighting report. Today she called me on her mobile and said she had seen it again. With the location I set off in the car to view this strange black bird and was surprised to see it was exactly as she had said. It was indeed a heron and a black one at that! It looks for all money to be a White-faced Heron and feedback seems to say that it is Melanistic (affected by dark pigmentation).


What do you think??? :D