These are the grounds or procreation. Life is created under your very daggers. Although, mares tread lightly, if you happen to 'stumble' into these lands, you can and probably will be forcebred.
Long and short breeding is allowed, just keep it in the posts. Before breeding (long or short) post your stats. You must then wait a few days, (up to a week if you wish) and then post the birth in your land or wherever you wish. Nikkayla, Cannon or D will give out stats.