Frederique Olivier / Brown skua (Stercorarius antarcticus) landing in an Eastern rockhopper penguin (Eudyptes chrysocome filholi) nesting colony, Macquarie Island, Australian Antarctica.

Frederique Olivier / Eastern rockhopper penguins (Eudyptes chrysocome filholi) reacting to a Brown skua (Stercorarius antarcticus) landing in their nesting colony, Macquarie Island, Australian Antarctica.

Frederique Olivier / Two Brown skuas (Stercorarius antarcticus) scavenging, Macquarie Island, Australian Antarctica.

Frederique Olivier / Three Brown skuas (Stercorarius antarcticus) scavenging, Macquarie Island, Australian Antarctica.

Frederique Olivier / Group of King penguins (Aptenodytes patagonicus) on a beach, with a Brown skua (Stercorarius antarcticus) in the foreground, Macquarie Island, Australian Antarctica.

Frederique Olivier / Southern giant petrel (Macronectes giganteus) competing with a group of Subantarctic skuas (Stercorarius antarcticus) to feed on a dead Royal penguin (Eudyptes schlegeli) chick, Macquarie Island, Sub-...

Sylvain Cordier / Falkland skua (Catharacta antarctica),chick, New Island, Falkland Islands

Sylvain Cordier / Falkland Skua (Catharacta antarctica), adult and chick, New Island, Falkland Islands

Sylvain Cordier / Falkland skua (Catharacta antarctica), adult with chick, Pebble Island, Falkland islands

Sylvain Cordier / Falkland Skua (Catharacta antarctica), chick walking around the nest, Pebble Island, Falkland islands

Sylvain Cordier / Falkland skua (Catharacta antarctica), adults with chicks, Pebble Island, Falkland islands

Sylvain Cordier / Falkland skua (Catharacta antarctica) adult with predated King cormorant / White bellied shag (Leucocarbo atriceps albiventer) egg, on Pebble Island, Falkland Islands