During mating season, males will spar in order to win the right to mate. The males will also make very loud roaring sounds to attract the attention of the females.
They are one of the few species of deer that keep their spots all their lives. With most of them the spots will disappear around the same time that the fawns are being weaned.
Visayan spotted deer are usually active at night, when they emerge from the forest to feed in clearings. They are very shy and retreat to dense forest when disturbed. Males will "roar" to challenge rival males.