This boy hatched from my washed and refrigerated eggs incubation experiment last spring. He's the only one of the 19 chicks that had this coloring - the others were clearly part Easter Egger (muffs and beards, hens lay blue/pink/green eggs), mostly reddish coloring (a few buff and a couple white), and almost all were from green eggs (just a couple of brown eggs hatched).
I'm guessing he's also part Easter Egger. Any thoughts about other breeds that may have contributed to his look?