Hello, I am the new mother of 2 beautiful chicks whom we have named 'Charlie Girl & Blackie' they came to use from my son's school after they incubated them. They are now 3.5 weeks old are are starting to develop so quickly, its amazing how much they change!. Does anyone know what breed they may possibly be and whether there are any tell tale signs of either a roo or a pullet please? Any information anyone can give me would be fantastic as I am very new to all this chicken keeping, but so looking forward to raising them!!