Na orodromeus hzoom
Orodromeus is a ornithopod dinosaur that lived in North America.  They lived herds and feasted on the plants.  There would be a scout that would be look out for large predators.  That scout would let out of a noise to warn the herd.  Its main defense is run away from the predators.  They where good parents, they form nursing groups where they nest and take care of there children.