There are those that look 'silver' that are not. Our stallion looked as though he could be, all parti hoofs as well, but not. One foal looked even more so and was a queer brown colour. His test came back as chestnut - his skin was all pitch black at birth - so must be a chocolate liver, with one grey gene - only a sprinkle of grey hairs over flanks like ticking, and negative to silver gene. He had a large percentage of clear/silver hairs in his mane and tail and his legs are black - still at 4 yo. It was not until he was two that he started to grey out and is still predominately dark and the coloured hair left over his body is black. Researching has led me to believe that he is possibly a 'coon tail', which is a type of roaning. His older sister is just chestnut, his younger sister is almost the same but not as much black in the coat, more brown. At two she has gained more grey to her coat but still very dark. Not as much light hair in mane and tail.