Sub-Antarctic Skua (Catharacta antarctica) vie for a fish head on Barrentos Island in the Aitcho Island Group, south Shetland Islands, Antarctica.

sealife sea life nobody barrentos island aitcho island group south shetland islands antarctica sub antarctic skua skuas catharacta antarctica fish head fishhead fish head food feeding beak beaks bird birds sea bird seabird sea birds seabirds gull gulls seagull seagulls two animals behaviour competing competition fighting aggression aggressive snow ice