If you make a pen for dodo breeding I highly recommend the following method: Dodos have a tendency of escaping through my briefly open doors so I made a small hall with a door on each end. One door is to the outside world, the other door goes into the dodo enclosure. This ensures that if a dodo sneaks by me through the enclosure door, I can catch it before it gets completely outside. Never lose your dodos to accidental escape again!
For the guy who said that it would be cool if a dodo could sit on your shoulder: on ark mobile, a dodo smaller than .75 can in fact be carried on your shoulder. Dodos over 2.6 can be ridden. Fun fact. :)