There are some amazing and rare species of birds available in Periyar. Birds like racket-tailed Drongoes, Hornbill, Kingfishers, Cormorants, herons, grey-headed fish eagle, orioles, ospreys, little green heron, painted stork thrushes, kestrel, Indian griffon mynas, blue winged parakeets, wood pigeons, Kites and Darters are some of them.
Among the reptiles of Periyar, you can spot Monitor Lizards. Along the lake side you can see them basking in the sun on some rocks. Luckily you can spot a king cobra or even huge python. As the Periyar is located in the lap of the high hills, the environment of the park is calm and serene. It resulted in drawing a picturesque landscape of the park. Experience of enjoying an evening or morning walk or feeling the fresh air is something you must try at least once.
You can visit Periyar during any month as there is no restricting months around the year. But, the best time is obviously the dry season. October to February is the suitable time for your visit because during winter, all other sources of water other than the lake get dried up. As a result, all the animals come out from their hiding places in search of water. But the best time to spot elephants is comparatively hotter months March and April.