Rocs prey mostly on large mammals, but are also fond of ankheg, purple worm, and harpy. Rocs are majestic natural creatures, and quite rare, so their existence is of special interest to many druids. Rocs are occasionally domesticated by storm giants and cloud giants, who train them as guardians and mounts. Rocs themselves ignore these scavengers, though aren't above snapping up a few in their beaks if they get in the way. Rocs are often followed by avian scavengers, such as eagles and buzzards, hoping to grab the choicest bits of a roc's prey as they splatter on the ground. They can also be used to manufacture feather tokens. Roc feathers are used in wings of flying and brooms of flying. Rocs can be trained like any other animal, but doing so is quite an endeavor for anything of human size - simply keeping the creature in a nest and giving it enough food is a daunting challenge. Roc feathers are also quite valuable, as they are light, but durable, and immense to boot. Roc eggs, though dangerous to harvest, are huge and flavorful, and can provision an entire ship.
They have also been known to employ boulders to pulverize ships at sea.
Their favorite hunting tactic is to grab prey with their talons, soar up into the air, and then drop them from a great height. Rocs attack prey or annoyances with claws and beak.