Is Karen a Kevin?

I bought this chicken as a pullet a year ago from Farm and Home. I was assured that she was a hen. Except, the older she gets the less she looks like a hen. She/he doesn't crow, doesn't have the rooster tail feathers, I've never had a single fertilized egg. And yet the questions remains. For the record, if Karen is actually Kevin my husband is ready to turn my favorite chicken into an obituary. I'm genuinely hoping that Karen is in fact a Karen.