When you kill two PCs, you get your own Obsidian Portal page. Yeesh.

This roc, used as a personal conveyance by the giants besieging Argent, remained with them as they attempted to destroy the gates. After being stunned and falling 200 feet, it decided to use that same drop to tenderize its prey, killing Bosabrieln and Peren in a variation of the mussel-opening technique displayed by seagulls in this video:

The creature was not slain, instead fleeing when the Shields were finally able to wound the beast.

Relevant:

Image retrieved from http://paizo.com/paizo/blog/v5748dyo5la07?Meet-The-Artists-Concept-Art-House on November 24, 2014.