Anyone want to guess?

[VA Susan]

This is Gray. He's an odd looking bird. What three breeds do you think are in him?

 

[Mahonri]

No clue. RIR, BR, SS?

 

[magicpigeon]

Probably a mutt of some sort. Speckled sussex cross?

 

[Heidi]

How about Ss, white jersey, and RIR

 

[Gallusfarm]

He looks cool.

 

[sourland]

Clueless as to his genetic background, but he is going to be a BIG rooster.

 

[VA Susan]

Here are Gray's parents.

His father is a Red Star.

His mother is a Speckled Sussex.

We had a discussion about the genetics of my Red star on this thread.
https://www.backyardchickens.com/forum/viewtopic.php?id=429272

I think that Gray's father, the Red Star is half White Rock and half RIR, so if that's true most of you were very close. Where would the barring come from? I've read that a white Rooster can carry barring underneath the white.