Hirwa group is found in Volcanoes National Park in Rwanda and is led by Munyinya. Munyinya silverback came from the main Susa group in 2002 and somewhat disappeared for about 4 years, until June 17th 2006 when he showed up again with a couple of other individuals. The group was opened for tourism in July 2006 and named as Hirwa in the same year. Since his return, Munyinya increased the size of his group by grabbing individuals from surrounding groups such as Sabyinyo, Agashya and Kwitonda. Despite being the newest group on the block, Hirwa kept exhibiting its strength and maintained its status and respect from other gorilla groups in the area. Hirwa group is composed of 19 individuals including 1 silverback, 5 adult females, 1 blackback, 1 sub-adult female, 6 juveniles and 5 infants. This group is known to have the second ever surviving twins (Isango Gakuru and Isango Gato born to Kabatwa) after the main Susa group.