Gavi is part of Periyar Tiger Reserve. This is part of a continuous forest area covering a large area from Thekkady to Agasthyarkoodam forests in Trivandrum district. There is a large population of elephants in Periyar Tiger Reserve. There are over 35 mammals in this forest. Some of them are: elephant, tiger, gaur, sambar, wild pig, Indian giant squirrel, Travancore flying squirrel, jungle cat, sloth bear, Nilgiri tahr, lion-tailed macaque, Nilgiri langur, Salim Ali�s fruit bat, stripe-necked mongoose, Malabar giant squirrel, barking deer, and Nilgiri marten.
There are more than 250 species of birds recorded around the area. Some of these are: great Indian hornbill, Malabar grey hornbill, Malabar whistling thrush, blue winged parakeet, white bellied fishing eagle, brown fish owl, forest eagle owl, white shouldered kite, crested serpent eagle, parakeets, bulbuls, Wayanad laughing thrush, skylarks and pipits, sunbirds, mynas, woodpeckers including great black woodpecker, kingfishers, flycatchers etc.
Gavi is also home to over 50 species of reptiles, 40 species of fish and a large species of insects including over 150 species of butterflies. Keep your eyes and ears open to catch a glimpse of them! Gavi is also rich in flora with over 170 species of grass and over 140 species of orchids.