Bush pigs of Kibale Forest, Uganda, exhibit at least four pelage colour morphs. Two predominant morphs resemble the western subspecies, Potamochoerus porcus porcus, and the eastern/southern subspecies, P. porcus koiropotamus. Kibale Forest may be a zone of secondary contact between subspecies. Alternatively, the Kibale population could be intermediate between clinal extremes. Group size ranged from one to eleven pigs with a mean of 32. One-third of those bush pigs sighted were immature. Observations were also made on activity and food habits.