I do not mean this post to be discouraging but the toe length, and needle on cotton string can both be made to look either way (Hen or Cock). The vent smile and frown is the way the chicken people sex their ybs. It seems to run in the high 90 percentile range, and yes its smiling for the cock and frowning for the hens. Just my two cents worth here and as its only my 3rd post I hopefully didn't offend anyone. Later and have a great day. Ed