These guys actually do have some use. If you just scatter them around you're base and have them on neutral, if something does get in your base it'll aggro on the dodos and you'll get a message saying you're dodo died, alerting you of the intruding creature. It'll also trigger anything you have guarding your base, like in my case, my dilos, my trikes, and my raptors.
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. :)
On mobile these can be bred to get insane sizes, like huge, bigger than an Allosaurus and they have 8 abilities unlocked at certain sizes. I only know 2 abilities, one is the dodo gains an immense amount of speed and charges towards the target. The other that I know of is that it jumps up and slams into the ground which stuns surrounding enemies. Do not underestimate the potential that these have on mobile, they can become beasts.
If you have to pick up a dodo(a very early tame, likely your first), choose a female. Dodo eggs are able to be made into basic kibble/dodo kibble(depends on the playing platform), which can be used to tame some powerful early tames.