They would have to be very different from our world's Dodos to survive the dangers of the world. They would probably have a fight or flight response, they may even have some limited flying ability to get to higher ground.
Ok In my opinion how is a question about dodos in the warhammer world serious. There a giant axe wielding fungus men, dinosaurs riding dinosaurs with lasers, and rat men with ww1 sci-fi weaponry and you ask about dodos