If a silkie has a fairly prominent breast bone, if she/he is "thicker" if you will... is this a good indication of her really being a he? I have a black silkie that I am 99% sure is female, but my white/gray/partridge/whatever silke is quite a bit larger than she is and we cannot get our hand around her/his body any longer.... we have to use two hands now to lift him/her!!!!