Birthing can occur at any time of the day, however later in the evening and in the early morning is when the mare will most likely be in labor. Most mares foal between 10 pm and 2 am. It is not uncommon for a mare to go into labor on her own. This will be evidenced by the mare being restless and often pacing around. The mare may become increasingly anxious and begin to try and get out of her stall, or she may simply be looking for a good place to urinate. If you see any signs that your mare is going into labor, immediately contact your veterinarian so he can be ready in case of complications.