The showgirls crest feathers on males flow down the neck, which makes the head look long. for the hens it is more round and most of the time the crest feathers do not flow down the neck. which makes the head look rounder. also males will start showing reddish color in the comb around 2 1/2mos...
cjwalden,
I would say you have a rooster. looks just like the one i have that is around the same age (3mos). If its a hen I know which hen laid that egg. all post her to, may give you something to compare too, as it gets older. But i am almost sure it's a roo. all go out and take a picture to post.