Although there are some reports of the tail-less pterosaur, there are more reports of long-tailed ones. It is the description of "featherless," however, that distinguishes a sighting of a possible pterosaur from what is called a Thunder Bird.
Papua New Guinea
North of Australia is the mysterious Papua New Guinea, a land of many islands and hundreds of languages. Names like "duwas," "ropen,"
and "indava" seem to indicate maybe one kind of creatures. In particular, "duwas" seems to be the same as "ropen," according to recent investigators.
("duah" may be some kind of American mistake for "duwas." The Tok Pisin word "duah" does not have anything to do with any flying creature: It is the Pidgin English word that means "door.")
"Searching for Ropens": A book
Cryptozoology, Adventure, and Spirituality
of the Umboi Island eyewitnesses who claim to have seen a giant ropen and describe it in terms suggesting a pterosaur
" was reported by Duane Hodgkinson (a World War II veteran) who saw the giant creature in Papua New Guinea (then known
as New Guinea) in 1944. The veteran described it as long-tailed and featherless; it had a pterosaur-like head crest.