Corpse Weepers are carnivorous and quite violent at that. They are notorious for their capabilities to mimic sounds and use it for hunting. If they capture prey with high social capabilities such as Hammerbeaks or humans, they will learn their prey's cries for help and use it to lure others to their colony, thus giving them the name, Crying Corpses. They live in colonies and raise their chicks together. When they are at a young age and before they learn to fly, the elders will carry living prey to take them to the nest to feed the chicks. As one would expect from their size, Corpse Weepers are quite strong, being able to swiftly carry a human around. During breeding season, they will purposely drive their prey to their colony and hunt them together. Delving into their colony is extremely dangerous, even for an adept Delver. Despite their scary looks and intimidating behavior, they are quite affectionate and chicks can be raised to be familiar with humans. Also, while their meat smells bad when cooked, it is incredibly tasty.
They have two eyes, one on the side of their head and a bigger one in what would be the forehead, despite asymmetry rarely occurring in nature. This gives them a superb spatial awareness, and they can respond quickly to threats coming from the sky. While they consume meat, they don't have a beak like most birds, so they rip out meat and organs using their tongues. Males have longer quills, so they can be recognized easily. With their wings fully spread, they can exceed 10 meters in width in some cases.