Britain's Duke of Cambridge is set to present the Tusk Conservation Awards later this year.
The 33-year-old Prince, who became the Royal Patron of Tusk in December 2005, will dish out the winning trophies during a ceremony in London on November 24, 2015.
Edward Ndiritu has already been informed he'll be receiving a medal, which has been specially crafted by the jewellers Tiffany, from the Duke for his work as the head of the anti-poaching unit, Lewa Wildlife Conservancy, in Kenya.
William penned Edward a letter to congratulate him on winning the Tusk Wildlife Ranger Award and to thank him for the "extraordinary contribution" he and his incredible team have made to protecting the wildlife in the country.
The other three nominees include; Mary Molokwu-Odozi from Libreria, Emmanuel de Merode from the Democratic Republic of Congo and Cosmas Mumba from Zambia.
Tusk Chief Executive, Charlie Mayhew, said: "Choosing just three outstanding conservation champions for our shortlist for the Tusk Award was extremely tough. We look forward to celebrating the work of our winner and all the finalists when they join us in London on November 24th."
Prince William, who is focused on conservation around the world, set up the awards after he and his brother Prince Harry, 31, carried out a tour of Botswana three years before.