Adult Chilean skua, Stercorarius chilensis, harassing kelp gulls to force regurgitation, Beagle Channel, Argentina, South America

Adult gentoo penguin (Pygoscelis papua) feeding chick, Hannah Point, Livingston Island, South Shetland Islands, Antarctica, Southern Ocean, Polar Regions

Adult Chilean skua, Stercorarius chilensis, harassing kelp gulls to force regurgitation, Beagle Channel, Argentina, South America

Brown boobies (Sula leucogaster) mother feeding chick by regurgitation, St. Peter and St. Paul's rocks, Brazil, South America