Rocs usually nest among mountaintops and cliffs inaccessible to all but the bravest of terrestrial dwellers. They are long-range predators that hunt both land and sea in search for massive prey to sustain them and their young. Rocs are antisocial and lone hunters who compete with each other in fierce aerial battles to protect territory. But about once a decade, a mating couple pairs up to raise their chicks. Once the chicks are old enough to hunt on their own, the parents separate to once again engage in lone hunting.