I was sitting on a flyer on a cliff above the deinos, thought I was safe to wait for my moment to steal their eggs...had the biggest heart attack when one of them decided to climb up the cliff. I accidentally dismounted in shock and fell right into the packs claws, where they shredded me to death. Don't be scared of them, they smell it.
Watch out, beginners. A Deinonychus can mess you up, especially in packs. If you spot a Deinonychus while at a low level, I'd recommend staying the heck away from it. At higher levels. That's when you should steal the eggs.