Well, a friend of mine has Rufus'(my ginger/white) sister, who is also ginger and white! Their mother is tortie/calico. In Ireland we call the type a tortie! Correct me, but calico ie tri colour, I think is the same thing. Anyhow, getting back to Rufus' sister: she's a piggy! she's persistant about food, not as vocal as Rufus but gets her point accross,and she drools, just like him! She sleeps more, and at 15wks old, she certainly sleeps more than him! She's all I got to go by !