Situated on an area of 777 square kilometers in the Cardamom hills region of the Western Ghats the Periyar Wildlife Sanctuary is one of the largest and most frequented wildlife reserves in India. 350 square kilometers area forming the core region was declared as a National Park in 1982. In 1895 a dam was built across Periyar River to provide irrigation facilities in Tamil Nadu.


It is visited by the wildlife enthusiasts with a view to spotting tigers and leopards. But sightings of these animals are all but assured. However, this place is ideal for watching other animals in their natural habitat. Other animals include elephant, wild pig, sambar, gaur, Malabar flying squirrel, stripe-necked mongoose and over 260 species of birds including blue-winged parakeet, Nilgiri wood pigeon, white-bellied tree pie, laughing thrushes and flycatchers.


Fauna

Periyar's sylvan environs offer a refuge to many mammals, reptiles and amphibians and around 320 avian species. The threatened lion-tailed Macaque and Nilgiri Langur occur here, as do the Flying and Malabar Giant Squirrel. The elusive Nilgiri Tahr is also present in this park. One can watch herds of Elephants swimming in the Periyar Lake. This lake was constructed by the Britishers in the year 1895 by constructing a dam across Periyar river. Now one can see most of the wildlife around this lake by boat launches. The lake also has a sizable population of turtles like Travancore Tortoise and the Black turtle. Periyar is also home to leopard, wild dog, barking deer, mouse deer, monitor lizards and a variety of snakes and birds. The birds include darter, cormorant, grey heron, ibis, great malabar hornbill and grey hornbill, kingfishers, ospreys and kites as well as orioles, hill mynas, racket tailed drongos, parakeets, including the unusual blue winged paraket and fly catchers. The animals are viewed from motor launches on the lake and from watch tower.


Flora

Due to the presence of large water bodies Periyar Wildlife Sanctuary is a bird watcher's delight. It attracts large number of birds both resident as well as migratory the reason being the presence of astonishingly vast flora. The forests are tropical, a mixture of deciduous, semi-evergreen, and evergreen 'sholas', the last occurring in the moist valleys and characterised by tall trees and a closed canopy. The forests alternate with extensive patches of grasslands. Periyar's rich bird life includes the Giant Hornbill, Cormorant, Darter, Osprey and Racket-tailed Drongo. The Indian Python and King Cobra are among the reptilian fauna. Periyar has a few Nilgiri Tahr, good numbers of which may also be seen on a day excursion to nearby Eravikulam National Park near Munnar.