Ok bear with me here im just starting to learn more about breed characteristics. I recently discovered one of my buff Orpington hens was not pure bred based on her leg color. Who would have thought?! Anyhow I have two black Australorps and I noticed one has a light face (Around the eyes and ears) and the other hasa black face. Could one be ssomething else? Or part of something else? Besides the bottom of their feet I really wouldn't know what to look for.