Video Ahto Täpsi
Roe deer Metskits or kaber Capreolus capreolus
It is a common annual autumn view to see the roe deer enjoy the sprouting seeds in grain fields. The male in the video still wears his antlers despite having winter fur but part of his species comrades are already bare-headed.
More about the life arrangements of roe deer: LINK
In the photo you can compare the different shapes of the rear mirrors of the individuals (a roe buck and a doe). After some time when all the males have dropped their antlers the shape of the mirror remains the only way to distinguish the genders from a distance.