I bought (what I was told anyway) 3 brahma bantams in early October that have grown into what I believe are full-size cochins. They are almost as big/tall as my BR's at 18-20 inches in height and are approx 18 weeks old. I do know that these are cochins from their combs but would like to know if these are indeed bantam cochins? I always thought bantams only grew to about 12 inches.