That male is on the darker side of what I call silverquill. Most of mine had little or no brown bleeding through on wings. My hen and her daughters like her could through a high percentage like that. Mine also all green / willow legged. That holds even now with birds of same stock. Peacomb was only in part of line I played with out of a battlecross cock that brought in the grey, toppy and wheaton all at the same time.
This family of fowl has been bred straight since 1952....nothing else has ever been added. These fowl were handed to Mr. William by way of Sweater....to Kurby Johnson by way of Mr. William....they were very close friends and then gifted to me by way of Kurby. They are a wonderful family of poultry that has lasted the test of time.