The Black Rhinoceros is a critically endangered species. The Eastern Salient of the Aberdare National, which covers an area of 120 km², is home to the highest population of Black Rhino in the park. Poaching was the main threat to that population in the past. Today, 27 rangers are on duty in the Eastern Salient to secure the remaining Black Rhino population from the threat of poaching. As a consequence, poaching incidents have reduced significantly. Critically important are intelligence gathering to address threat before they impact on black rhinos as well as desnaring operations which need to be conducted for a one-week period every month.