I have two hens that look like they are exactly the same breed. One is 18mo and supposed to be a Black Star, though I bought her at the local feed store where they had tons of baby chicks in feed troughs, and they could have gotten mixed up. The other is 7mo, came from Murray McMurray and is supposed to be an Australorpe, but since I have twice had experiences with McMurray birds not quite being what they are supposed to be, I am not sure. Are there identifying features I can look for? Would it help if I post photos? They look so much alike, except that Jane is obviously a more mature bird, and her legs are more grey, where Helen's legs are darker. Thanks!