Birdcalls compete with the shouts of monkeys and the buzz of a hundred thousand insects.
Sunlight throughout the day softens and warms the forest noise, but as night falls again, it intensifies. A voice of steady rhythm emerges, a solo - the sound of drumming. A good number of non-governmental organisations are represented in Yambio, providing skills and funding for various development projects. Employees drive around in 4x4 Toyotas or on shiny motorcycles. They use the latest HF and VHF radios for daily communication with headquarters in Kenya.