36K views · 92 reactions | Fawns become sexually mature at around 80-90 lbs. in the north/midwest and at about 70 lbs. in the south. If a high percentage of doe fawns breed in your area, it's a sign of good soils, abundant forage and a balanced deer herd. In Iowa, it's common for 70+% of fawns to breed. In South Carolina, it can be less than 10%. This doe was taken in Kentucky and likely was bred as a fawn. | Whitetail Properties | Facebook