Northern giant petrel (Macronectes halli) scavenging and feeding on a dead fur seal pup at St. Andrews Bay, South Georgia

macronectes halli scavenging dead animal wildlife behavior feeding frenzy seabirds south georgia natural interaction conflict marine ecosystem avian scavengers predation ecological role birds fighting ocean habitat nesting habits encounter antarctic nature observation coastal environment carrion dynamics species bird conservation biology rights environmental balance ecology seabird competition research birdwatching fur seal