Not sure what mixed breed this rooster is. He's either offspring from my birds or part of a dozen "olive eggers" eggs I hatched out at the same time last year. My eggs were Silver Grey Dorking rooster on Sicilian buttercup, Delaware, Welsummer, White Crested Black Polish, or Buff Polish (or SGD hens, but it's obvious he's not pure SGD). The eggs from the olive egger eggs were Cream Legbar (I think) on Silver Spangled Appenzeller Spitzhauben, Silver Laced Cochin, and a few others. I'm mainly curious as to if I put him with my green and dark brown egg layers if they'll produce hens that also lay green eggs?