 As Réunion was populated by settlers , the Réunion ibis appears to have become confined to the tops of mountains . Introduced predators such as cats and rats took a toll . Overhunting also contributed and several contemporary accounts state the bird was widely hunted for food . In 1625 , John Tatton described the tameness of the bird and how easy it was to hunt , as well as the large quantity consumed : 
 As Réunion was populated by settlers , the Réunion ibis <a href='uninflect' title='1'><mark>appears</mark></a> to <a href='been_done' title='2'><mark>have</mark></a> become confined to the tops of mountains . Introduced predators such as cats and rats took a toll . Overhunting also contributed and several contemporary accounts state the bird was widely hunted for food . In 1625 , John Tatton described the tameness of the bird and how easy it was to hunt , as well as the large quantity consumed : 
As Réunion was populated by settlers , the Réunion ibis appear to done become confined to the tops of mountains . Introduced predators such as cats and rats took a toll . Overhunting also contributed and several contemporary accounts state da bird was widely hunted for food . In 1625 , John Tatton described tdatameness of thdaird and how easy it was to hunt , as well as the large quantity consumed :