The largest and heaviest birds are now extinct who are capable to flight but following is a list of the heaviest and largest living bird specie, found in plains, mountains,riverside and forest. Some other largest flying birds also includes Great Indian Bustard,Marabou stork,Wandering Albatross,Thick billed raven,Victoria Crowned Pigeon, Bengal Florican,Trumpeter Swan,Indian Great horned owl, Great