Ornithomimus

Ornithomimus ("bird mimic") was a dinosaur from the Late Cretaceous. Like most ornithomimids, it was probably omnivore.

Iberomesornis's Idea
Ornithomimus should have tons of space to run around, and live prey in the form of mouses and rats. But berry bushes would mantain the animal too. Ornithomimus should live in a dark exhibit, as it was a nocturnal predator.