GREY COCK MATED TO MARKED WHITE HEN  

PRODUCES
GREY SPLIT MARKED WHITE COCKS  (THIS BIRD LOOKS LIKE A NORMAL GREY BUT CARRIES THE MARKED WHITE GENE)   GREY HENS
  MARKED WHITE COCK MATED TO GREY HEN  

PRODUCES
GREY SPLIT MARKED WHITE COCKS   MARKED WHITE HENS                   
  GREY SPLIT MARKED WHITE COCK

MATED TO

MARKED WHITE HEN               

PRODUCES
GREY SPLIT MARKED WH.COCKS AND MARKED WHITE COCKS   GREY HENSAND MARKED WHITE HENS
  GREY SPLIT MARKED WHITE COCK MATED TO GREY HEN  

PRODUCES
GREY COCKSAND GREY SPLIT MARKED WHITE COCKS   GREY HENSAND MARKED WHITE HENS