Red duikers roam singly, in pairs, in small family groups,
or in a loose asociation of 3 - 5 individuals. They browse,
mostly after dark, on the leaves, stems and fruits of low-growing
shrubs: they are concentrate feeders, as they cannot digest
fibre very well. Their cry, mid-way between a snort and
a whistle, is loud and penetrating. When the duiker is in
danger or has been spotted, it will freeze, and then bound
away with the charactristic duiker diving motion into the
safety of thick undergrowth.
The red duiker is preyed on by eagles and pythons as well
as leopards and other predators. When the duiker is in distress,
its call becomes a throaty cry. The duiker's biggest threat
is the clearing of its natural habitat, either for agriculture
or human habitation. When the young are born, they are a
reddish-black, with a reddish-brown face. Usually a single
lamb is born, at any time of year.