For me it's a female!
She had laid, she had brooded and she takes care of her chicks ... everything is normal except that color!
All these functions are governed by hormones .... female hormones.
Those who are looking for new colors? must find that peahen ... it may be a new line for another type of peacock!
At first it made me think of the female guppies whose color changes after hormone therapy.
We need a good private investigator to find out where this peahen lives !
http://faceless39.hubpages.com/hub/peacock-facts-and-photos#slide6476874
http://commons.wikimedia.org/wiki/File:2011-07-11-hyeres-7.jpg
..... good luck!
Says that Thomas Bresson lives in France, so maybe it was there?