Nilgiri Langur (Presbytis johni) is a glossy black monkey with a yellowish brown head. It has a long tail and is similar in size to the common Langur. It is commonly found in the Nilgiri
hills of the Western Ghats
and also in Kodagu District
, Palani hills in Tamil Nadu
and Cardamom hills in Kerala
. The group size ranges from 3 to 25 individuals. The Nilgiri Langur is exclusively vegetarian, and its diet is composed mainly of mature leaves, but it also eats young leaves and fruit. At present there is a decline in the number of these animals, because of the destruction of Shola forests and due to a number of other human activities.