הזיהויים של achillediodio

I once briefly visited the rather sad and awful zoological garden in Kisangani, where animals including chimpanzees are kept in small cages under dreadful circumstances. Several primate species, however seem to freely roam the grounds. One, surprisingly was a De Brazza's monkey. I am not entirely sure it was a truely wild specimen but at least is did not appear to be restrained.