Hi Ameracaunacrazy ! I thought someone on this thread would be able to help you. Here are some thoughts . One , Viper and Cobra are lines of the same breed, Asil. The Asil is also divided by size , and region of origin To my unprofessional eye your hen looks kind of fine boned and taller than most of the Asil hens I have seen. Do you know how much she weighs? You mentioned in your other post that she is rough on males, this is not unusual. I hope that I have been of some help. I feel certain that some of the experts on here, who know a lot more than I, will correct my statements if I am in error, they usually do.