Cyril Ruoso / Chimpanzee (Pan troglodytes) baby playing with keeper, Pandrillus Drill Sanctuary, Nigeria

Cyril Ruoso / African Pygmy Kingfisher (Ispidina picta) portrait, Cross River State, Nigeria

Cyril Ruoso / Toads mating in river, Cross River State, Nigeria

Cyril Ruoso / Owl fledgeling left nest too early cannot fly yet, Cross River State, Nigeria

Cyril Ruoso / Cocoa (Theobroma cacao) plantation, Boje Village, Cross River State, Nigeria

Cyril Ruoso / Red-headed Rock Agama (Agama agama) male, Boje Village, Cross River State, Nigeria

Cyril Ruoso / Cocoa (Theobroma cacao) plantation, Boje Village, Cross River State, Nigeria

Cyril Ruoso / Chimpanzee (Pan troglodytes) baby and keeper playing with water, Pandrillus Drill Sanctuary, Nigeria

Cyril Ruoso / Cocoa (Theobroma cacao) boy helping with harvest, Boje Village, Cross River State, Nigeria

Cyril Ruoso / Chimpanzee (Pan troglodytes) young playing with keeper, Pandrillus Drill Sanctuary, Nigeria

Cyril Ruoso / Chimpanzee (Pan troglodytes) adult female with sleeping infant, Pandrillus Drill Sanctuary, Nigeria

Cyril Ruoso / Chimpanzee (Pan troglodytes) infant, Pandrillus Drill Sanctuary, Nigeria

Cyril Ruoso / Drill (Mandrillus leucophaeus) orphan infant, Pandrillus Drill Sanctuary, Nigeria

Cyril Ruoso / Chimpanzee (Pan troglodytes) adult resting in night nest, Pandrillus Drill Sanctuary, Nigeria

Cyril Ruoso / Drill (Mandrillus leucophaeus) orphan infant, Pandrillus Drill Sanctuary, Nigeria

Cyril Ruoso / Chimpanzee (Pan troglodytes) trio playing with keeper, Pandrillus Drill Sanctuary, Nigeria

Cyril Ruoso / Chimpanzee (Pan troglodytes) adult female swinging with baby, Pandrillus Drill Sanctuary, Nigeria

Cyril Ruoso / Drill (Mandrillus leucophaeus) young female sitting amid lianas, Pandrillus Drill Sanctuary, Nigeria

Cyril Ruoso / Drill (Mandrillus leucophaeus) young female sitting in tree, Pandrillus Drill Sanctuary, Cross River State, Nigeria

Cyril Ruoso / Drill (Mandrillus leucophaeus) young female, Pandrillus Drill Sanctuary, Nigeria

Cyril Ruoso / Drill (Mandrillus leucophaeus) young male skinning toad before eating, Pandrillus Drill Sanctuary, Nigeria

Cyril Ruoso / Drill (Mandrillus leucophaeus) young male skinning toad before eating, Pandrillus Drill Sanctuary, Nigeria

Cyril Ruoso / Drill (Mandrillus leucophaeus) alpha male appeasement face with harem, Pandrillus Drill Sanctuary, Nigeria

Cyril Ruoso / Drill (Mandrillus leucophaeus) juvenile males and female look very similar when young, Pandrillus Drill Sanctuary, Nigeria

Cyril Ruoso / Drill (Mandrillus leucophaeus) young males playing, Pandrillus Drill Sanctuary, Nigeria

Cyril Ruoso / Drill (Mandrillus leucophaeus) male and female very similar when young, Pandrillus Drill Sanctuary, Nigeria

Cyril Ruoso / Drill (Mandrillus leucophaeus) young female, Pandrillus Drill Sanctuary, Nigeria

Cyril Ruoso / Barn Swallow (Hirundo rustica) collected for tagging while migrating, Ebakken, Nigeria

Cyril Ruoso / Barn Swallow (Hirundo rustica) leg. This bird was banded in Italy recovered in Ebakken, Nigeria

Cyril Ruoso / Barn Swallow (Hirunda rustica) researcher Pierfrancesco Micheloni collecting migrating individuals for banding, Ebakken, Nigeria

Cyril Ruoso / Barn Swallow (Hirundo rustica) group cooked after a night hunt, Nigeria

Cyril Ruoso / Barn Swallow (Hirundo rustica) group cooked after night hunt, locals eat them as cheap meat killing about 7 million in one season, Nigeria

Cyril Ruoso / Mushroom-shaped termite mound in the rainforest, Cross River State, Nigeria

Cyril Ruoso / African Pygmy Kingfisher (Ispidina picta) portrait, Cross River State, Nigeria

Cyril Ruoso / Owl fledgeling left nest too early cannot fly yet, Cross River State, Nigeria

Cyril Ruoso / Bush meat hunter with kill, Boje Village, Cross River State, Nigeria

Cyril Ruoso / Drill (Mandrillus leucophaeus) young male, Pandrillus Drill Sanctuary, Nigeria

Cyril Ruoso / Barn Swallow (Hirundo Rustica) with mist nest for banding, Ebakken, Nigeria

Cyril Ruoso / Barn Swallow (Hirundo rustica) migrating flock caught in mist net at elephant grass roost for banding, Ebakken, Nigeria

Cyril Ruoso / Barn Swallow (Hirunda rustica) researcher Pierfrancesco Micheloni collecting migrating individuals for banding, Ebakken, Nigeria

Cyril Ruoso / Barn Swallow (Hirunda rustica) researcher Pierfrancesco Micheloni collecting migrating individuals for banding, Ebakken, Nigeria

Cyril Ruoso / Barn Swallow (Hirundo rustica) collected by researcher for banding, Ebakken, Nigeria

Cyril Ruoso / Barn Swallow (Hirundo rustica) collected by researcher for banding, Ebakken, Nigeria

Cyril Ruoso / Barn Swallow (Hirundo rustica) caught in mist net collector for banding, Ebakken, Nigeria

Cyril Ruoso / Barn Swallow (Hirundo rustica) flock roosting overnight in the elephant grass, Ebakken, Nigeria

Cyril Ruoso / Barn Swallow (Hirunda rustica) collected by ornithologist Pierfrancesco Micheloni for banding, Ebakken, Nigeria

Cyril Ruoso / Barn Swallow (Hirundo rustica) researcher collecting individual for ornithologist Pierfrancecso Micheloni for banding, Ebakken, Nigeria

Cyril Ruoso / Barn Swallow (Hirundo rustica) flock roosting overnight in the elephant grass, Ebakken, Nigeria

Cyril Ruoso / Barn Swallow (Hirundo rustica) flock roosting overnight in the elephant grass, Ebakken, Nigeria

Cyril Ruoso / Barn Swallow (Hirundo rustica) research, rings collected by villagers and researchers, Cross River State, Nigeria

Cyril Ruoso / Barn Swallow (Hirundo rustica) hunter making glue from Llana sap for trap, Cross River State, Nigeria

Cyril Ruoso / Barn Swallow (Hirundo rustica) hunter making glue from Llana sap for trap, Cross River State, Nigeria