 The Rodrigues starling was 25 – 30 centimetres ( 10 – 12 inches ) long , and had a stout beak . It was described as having a white body , partially black wings and tail , and a yellow bill and legs . Little is known about its behaviour . Its diet included eggs and dead tortoises , which it processed with its strong bill . Predation by rats introduced to the area was probably responsible for the bird 's extinction some time in the 18th century . It first became extinct on mainland Rodrigues , then on Île Gombrani , its last refuge . 
