The Dodo bird lived on the Mascarene Islands which
are about 550 miles east of Madagascar until they
got extinct in the late 17th century. Mauritius,
the largest of these islands, had no indigenous
land mammals or amphibians which means the Dodo
had no enemies.
This changed when Europeans
arrived in the 16th century who began to grow
sugar cane, cotton and tobacco on the
island. They brought with them hogs, goats and
dogs. The Dodo was an easy prey to men and to the
predators. Also, their nests were exposed and the
eggs were easy food, too.
The first Europeans
arrived around 1598 and it took them only until
1755 to destroy the bird.
good web sites about the Dodo bird, if you want to
more, here is one of them: