How to tag a rhino? Use tech, tact … and plenty of caution – a photo essay

Fewer than 2,000 rhino remain in Kenya, and the country's wildlife service needs to keep tabs on them to make sure they thrive. It's a major undertaking, involving a helicopter, 4x4s and a lot of rangers

Words and photographs by Peter Muiruri

Kenya has the world's third largest rhinoceros population: a total of 1,890 including 966 black rhinos, 922 southern white and two northern white. But how to keep track of them and ensure the species are thriving? Every two or three years, Kenya Wildlife Service (KWS) carries out an ear-notching exercise in all rhino sanctuaries in the country to ensure that at least 60% of the animals are uniquely identifiable.

An ear-notch is a pattern unique to an individual rhino within a specific ecosystem that helps rangers and researchers keep accurate records and monitor the rhino's health.

Here comes a chopper ... a helicopter is used to dart the highly aggressive black rhino