 The taxonomic history of the Réunion ibis is <unk> and complex , due to the ambiguous and <unk> evidence that was available to scientists until recently . The supposed " white dodo " of Réunion is now believed to have been an erroneous <unk> based on the few contemporary reports which described the Réunion ibis , combined with paintings of white dodos from Mauritius by the Dutch painters Pieter Withoos and Pieter Holsteyn II ( and derivatives ) from the 17th century that surfaced in the 19th century . 
