Not all fire's have the blushing. And I'm sorry, but he is no where near bright enough to look like a desert ghost. Not to me anyway.
Once he shed's, you should be able to tell from the shed if he is a ghost. But I still stand by the fire. I have two myself, and he carries "the look".
I am curious to find out if he is really a ghost, because he just doesn't carry the typical ghost look at all.
Gale