Oviraptor will autonomously do the dirty work of stealing eggs from other tribes or wild dinos on your behalf, without attracting unwanted attention. They also make quite adorable sounds, so many children simply like to keep them around as rather strange companions.
Why do Oviraptors steal eggs?
The reason it got its name is that when it was first discovered Oviraptor was sitting on a nest of eggs. It was thought it was stealing the eggs of another dinosaur. Years later, it was found that the eggs were its own and that it was trying to protect them from an approaching sandstorm.
Can Oviraptors steal Wyvern eggs?
Use an oviraptor to steal eggs, then take the egg so you won't get aggroed. Do NOT pick up the oviraptor if it's holding the egg. The egg will vanish and it won't be able to pick up eggs again.