For the first few days after birth, the mare and the foal should be allowed peace and quiet away from other animals to form a close bond and to allow the foal to gain in strength.

从出生后几天开始，母马和小马驹应当给于安静，与其他动物隔离开，形成一种亲密关系，让小马驹得到力量。

youdao

We've seen mares in the middle of giving birth and both the foal and the mare have died.

BBC: Bad weather kills half of Welsh wild pony herd