Well I have a name idea that I have been saving for a few years for a male green peafowl, but now I am not sure if I will use it or not. A person on another site once told me that if I ever get a green peafowl I should name it Feng Huang which is pronounced "F-uh-ng W-ah-ng" with an "uh" and an "ah" sound in between. The name comes from an East Asian mythology of a bird that fights snakes and in some illustrations it looks a lot like a green peafowl. It is very similar to the mythological phoenix. Although the name is actually for two birds - Feng is male and Huang is female. It would be cool to name a male Feng and a female Huang but for me Huang isn't a good female name. In the mythology the male is supposed to represent the solar cycle and summer. Peacocks do seem to represent summer very well by growing their elaborate train just for spring and summer.
So I think the Imperator's name is going to be
Feng.
Here are some links to more info on the mythical Feng Huang:
http://www.avians.net/paragon/fenghuang.htm
http://en.wikipedia.org/wiki/Fenghuang
There are a lot more interesting bits about the Feng Huang that I didn't mention