Some of these issues we all see with late fawns being born is a direct result of having a young (1.5 -2.5 yrs old) overall herd. Bucks are breeding later and younger does are coming into heat later. Sometimes into Feb-March and later. It is the way the herd as a whole tries to rebound with out of whack buck to doe ratios and over hunting pressures. Then mother nature reacts with big storms to stop the revolving door and squash the cycle. IMHO we aren't helping it either.
Ain't nature neato!