RE: how to tell if it a yearling deer
One way to know is look at its legs.
If the legs look to long for the body size it means that it is very young.
A older deer will have short looking legs
Because like people after they get older there bellys get big lol
And there backs will look saggy.
A young deer will have a strong looking back thats straight and not saggy.
I hope this helps.
Good Luck Hunting
jrbsr