Northern giant petrels (Macronectes halli) fighting over the scavenging rights to a dead fur seal pup at St. Andrews Bay, South Georgia

macronectes halli scavenging competition south georgia wildlife seabirds marine life feeding behavior coastal natural habitat aggression predation beach seals animal interaction avian scavengers ecosystem foraging nature rights seabird conflict shore world diverse species conservation survival birdwatching documentary migration frenzy mating rituals territorial disputes breeding season scavenger birds wild animals fur