Hey, your EE boy looks quite a lot like mine! I love his coloration. I've recently had a genetics lesson also and learned that he is golden duckwing with dominant white or golden pyle. My boy is in my avatar but here's the pic much larger:
It never ceases to amaze me how similar "mutt" chickens can look. Your little one has the duckwing markings, too -- I'm putting my money on pullet chick.

It never ceases to amaze me how similar "mutt" chickens can look. Your little one has the duckwing markings, too -- I'm putting my money on pullet chick.