Brown leghornMy Whatnot is a Barred Rock as far as I know. I say that because I got her from the same place I got two chicks that were suppose to be Wyandottes.I wasn't being too picky when I bought them because I wanted chicks for Scrambled to brood cause she had just set a nest of "fertilized eggs" that did not hatch. She sat that nest for over 21 days, then she left it, jumped up on the perch in the chicken yard and appeared to shout "I am done, those #*? eggs aren't hatching. When I was looking at chicken breeds on BYC I realize they look more like Welsummers, except they lay large white eggs.
I am thinking they are some sort of mix and the country store guys didn't know the difference.

http://search.yahoo.com/search?ei=utf-8&fr=ytff1-tyc-sc&p=brown leghorn&type=