Silent Valley National Park located 40 kms from Mannarkkad in the Palakkad district, echoes with the sounds of teeming wildlife.
The core of the Nilgiri Biosphere Reserve, the Silent Valley National Park is probably one of the most magnificent gifts of nature to mankind, a unique preserve of tropical rain forests in all its pristine glory with an almost unbroken ecological history. Thanks largely to its difficult terrain and remoteness, the extent of degradation is minimal in comparison with other sanctuaries.
The park has a huge variety of wildlife, with over a 100 species of Butterflies and 400 species of Moths and other animals like the Ceylon Frog Moth, Great Indian Hornbill, the Nilgiri Laughing Thrush and the Lion-Tailed Macaque.
The park has around 26 species of mammals and 120 species of avifauna, many of them considered endangered. Apart from these, there are 11 species of snakes, 19 species of amphibians, and nine species of Lizards in the park.
There is a huge wild tree of Kattualying variety. It is hollow within and can hide at least 12 people in it.