Cyril Ruoso / Blue monkey (Cercopithecus mitis) in tree top, La Ruvubu National Park, Burundi, Non-ex.

Cyril Ruoso / Pennant's red colobus (Procolus pennantii) up in tree, La Ruvubu National Park, Burundi, Non-ex.

Cyril Ruoso / Olive baboon (Papio hamadryas anubis) up in tree, La Ruvubu National Park, Burundi, Non-ex.

Cyril Ruoso / Lady's Ross touracos (Musophaga rossae) La Ruvubu National Park, Burundi, Non-ex.

Cyril Ruoso / Lady's Ross touraco (Musophaga rossae) La Ruvubu National Park, Burundi, Non-ex.

Cyril Ruoso / Hippopotamus (Hippopotamus amphibius) La Ruvubu National Park, Burundi, Non-ex.

Cyril Ruoso / Yellow billed storks (Mycteria ibis) displaying, La Ruvubu National Park, Burundi, Non-ex.

Cyril Ruoso / Nile crocodile (Crocodilus niloticus) basking on shore, La Ruvubu National Park, Burundi, Non-ex.

Cyril Ruoso / Wooded savannah habitat, La Ruvubu National Park, Burundi, Non-ex.

Cyril Ruoso / Panther Toad (Bufo regularis) male calling, Ruvubu National Park, Burundi

Cyril Ruoso / Yellow-billed Stork (Mycteria ibis), Ruvubu National Park, Burundi

Rod Williams / Portrait of L'Hoest's Monkey (Cercopithecus l'hoesti) female. Endangered species. Captive. Occurs Burundi, Uganda, Rwanda, DR Congo.