From an Outdoorlife post...

"As deer hunter/managers, what interests us most is fawn outliers; fawns that hit the ground in early April or as late as August. These fawns are at a marked disadvantage as far as survival goes at least in the northern most latitudes. Early drops (and their mothers) are subject to severe weather conditions and late drops enter winter as sub-adults with insufficient body mass to survive a hard winter.

Poor management can lead to late-season births. High doe-to-buck ratios (5 does or more per buck), overpopulation, and a lack of mature experienced breeding bucks in the herd can result in a prolonged rut stretching over many months
Happily, Mother Nature has had thousands of years to decide when fawns are best brought into the world and does a good job of delivering the goods. Last year, 95% of the country had a biological rut which peaked somewhere around Nov. 15th. In most parts of whitetail country, a fawn born June 1 enters an almost perfect world as far as survival goes."


When you aren't a fan, it's easy to single out the gun season as the reason for all the deer world's woes. Yet, it's obvious that there are many reasons for fawns being born both early and late.