), Nilgiri Tahr , Common Palm Civet , and Grizzled Giant Squirrel . [37] :12, 174–175 Reptiles include the King Cobra ( Ophiophagus hannah ), viper , python , and Mugger Crocodile ( Crocodylus palustris ) . Kerala's birds are legion— Peafowl , the Great Hornbill , Indian Grey Hornbill ,