* If the mare is in oestrus, the stallion usually demonstrates a [[Reproductive_Behaviour_-_Pre-copulatory_Behaviour_-_Anatomy_%26_Physiology#Flehmen_Response|Flehmen response]]. | * If the mare is in oestrus, the stallion usually demonstrates a [[Reproductive_Behaviour_-_Pre-copulatory_Behaviour_-_Anatomy_%26_Physiology#Flehmen_Response|Flehmen response]]. |