I have purchased several chicks and now that many are getting older...how do you know if it is a bantam or if it is a standard. People have said that I had a cute banty, while others have said it is a standard. How can you tell? My oldest are 10 weeks. My littlest are a few days. Their breeds are Orpingtons, Brahmas, Cochins, Ameraucanas, Wyandotte, Barred Rock, and Austrolope. (I don't know if that makes a difference)