I have 6 pullets sold to me as Light Brahmas. In looking through the breeds, I find the Light Sussex that looks just like my Light Brahma. If these aren't the same bird with different names, they must be somehow related. Right? I'm thinking about adding some Speckled Sussex to my flock but I want the lighter buff colored ones like I saw at Woodland Park Zoo in Seattle. Anyone know if that's a special variety?