Columbiformes
There are approximately 310 species of doves and pigeons . They are found all around the world, including many oceanic islands. You can recognize pigeons and doves by their small bills with bare skin at the base and a little bulge at the tip. They also have small heads on plump bodies with soft feathers. Pigeon parents feed their young a special milk made in their crops (a part of their digestive system). The extinct Dodo was a member of this group.