Juveniles eat mostly amphibians , whereas adults usually prefer reptiles and mammals -- during amphibian breeding periods , however , adult cobras eat mostly frogs or toads . the Cricket frog ( `` Fejervarya limnocharis '' ) , the Common tree frog ( `` Polypedates leucomystax '' ) , and the Asian common toad ( `` Duttaphrynus melanostictus '' ) are common prey .
Juveniles eat mosly amphibians , whereas adults usually prefer reptiles and mammals - during amphibian breeding periods , however , adult cobras eat mostly frogs or toads : the Cricket frog ( `` Fejervarya limnocharis '' ) , the Common tree frog ( `` Polypedates leucomystax '' ) , and the Asian common toad ( `` Duttaphrynus melanostictus '' ) .