The 400 gorillas in Bwindi Impenetrable National Park form 36 distinct social groups and 16 solitary males. Ten of these social groups are habituated to human presence for either tourism or research. This were, at the time of the census, 168 gorillas or 42% of the Bwindi population.

From an IGCP Press Release

^{The census was conducted by the Uganda Wildlife Authority with support from l’Institut Congolais pour la Conservation de la Nature and the Rwanda Development Board. It was also supported by the International Gorilla Conservation Programme, the Max Planck Institute for Evolutionary Anthropology, Conservation Through Public Health, the Mountain Gorilla Veterinary Project, the Institute of Tropical Forest Conservation, and the Dian Fossey Gorilla Fund International. It was funded by WWF-Sweden with supplemental support from Berggorilla & Regenwald Direkthilfe, the Wildlife Conservation Society, and the Max Planck Institute for Evolutionary Anthropology.}