You suppose? A Jenny is a young hen, that's why I said Jake's girlfriend. I don't know if the Toms mate with the younger hens. How old do they have to be before they start?
A hen may range in size from 9 to 14 pounds with a juvenile female ranging from 7 to 10 pounds. A young male turkey is called a jake and a young female turkey is called a jenny. The young are smaller than the adults, and share the coloration of an adult female.
I think they go together like peas and carrots.