 The volcanic island of Réunion is only three million years old , whereas Mauritius and Rodrigues , with each their flightless Raphine species , are eight to ten million years old , and it is unlikely that either bird would have been capable of flying after five or more million years of adapting to the islands . Therefore , it is unlikely that Réunion could have been colonised by flightless birds from these islands , and only flighted species on the island have relatives there . Three million years is enough time for flightless and weak flying abilities to have evolved in bird species on Réunion itself . But such species would have been wiped out by the eruption of the volcano Piton des Neiges between 300 @,@ 000 and 180 @,@ 000 years ago . Most recent species would therefore likely be descendants of animals which had recolonised the island from Africa or Madagascar after this event , which is not enough time for a bird to become flightless . 
 The volcanic island of Réunion <a href='drop_aux' title='1'><mark>is</mark></a>only three million years old , whereas Mauritius and Rodrigues , with each their flightless Raphine species , <a href='drop_aux' title='2'><mark>are</mark></a>eight to ten million years old , and it is unlikely that either bird would have been capable of flying after five or more million years of adapting to the islands . Therefore , it is unlikely that Réunion could <a href='been_done' title='3'><mark>have</mark></a> been colonised by flightless birds from these islands , and only flighted species on the island <a href='got' title='4'><mark>have</mark></a> relatives there . Three million years <a href='drop_aux' title='5'><mark>is</mark></a>enough time for flightless and weak flying abilities to <a href='been_done' title='6'><mark>have</mark></a> evolved in bird species on Réunion itself . But such species would <a href='been_done' title='7'><mark>have</mark></a> been wiped out by the eruption of the volcano Piton des Neiges between 300 @,@ 000 and 180 @,@ 000 years ago . Most recent species would therefore likely be descendants of animals which <a href='been_done' title='8'><mark>had</mark></a> recolonised the island from Africa or Madagascar after this event , which <a href='negative_concord' title='9'><mark>is</mark></a> <a href='negative_concord' title='10'><mark>not</mark></a>enough time for a bird to become flightless . 
The volcanic island of Réunion only three million years old , whereas Mauritius and Rodrigues , wid each their flightless Raphine species , eight to ten million years old , and it is unlikely that either bird would have been capable of flyin after five or more million years of adapting to the islands . Therefore , it is unlikely dat Réunion could done been colonised by flightless birds from dese islands , and only flighted species on the island got relatives there . Three million yrs enough time for flightless and weak fflyinabilities to done evolved in bird species on Réunion itself . But such species would done been wiped out by the eruption of da volcano Piton des Neiges between 300 @,@ 000 and 180 @,@ 000 yeyrsgo . Most recent species would therefore likely b descendants of animals which done recolonised the island from Africa or Madagascar after this event , which ain't enough time for a bird to become flightless .