So I've got my 8 little chicks in the brooder who are now 1 week old now. However, I did a very bad thing and searched craigslist for chicks...and now I want either a bantam cochin or a silkie. Can anyone tell me anything about these guys? How would they fit into my varied flock? Is adding a 2 week old to 1 week olds a bad idea? Or is it okay to have mixed ages in the brooder?