Northern giant petrel Macronectes halli fighting over the scavenging rights to a dead elephant seal pup at Royal Harbor on South Georgia Island, Southern Ocean. Northern giant petrel Macronectes halli fighting over the scavenging rights to a dead elephant seal pup at Royal Harbor on South Georgia Island, Southern Ocean MORE INFO Giant petrels are aggressive predators and scavengers, which has led to the other common name they were known as, the Stinker, and the whalers used to call them glutton