Ingo Arndt / Seabird colony nesting on cliff face, Lange Anna, Helgoland, Germany

Bernard Castelein / Common Eider (Somateria mollissima) female with chicks walking up beach from water, Helgoland, Germany, May

Bernard Castelein / Common Eider (Somateria mollissima) chick on beach, Helgoland, Germany, May

Edwin Giesbers / Two male Eider ducks (Somateria mollissima) Heligoland, Germany

Edwin Giesbers / Two Northern gannets (Morus bassanus) in flight, Heligoland, Germany

Edwin Giesbers / Northern gannet (Morus bassanus) pair, courtship, Heligoland, Germany

Edwin Giesbers / Northern gannet (Morus bassanus) sky pointing, Heligoland, Germany

Bernard Castelein / Grey seal (Halichoerus grypus) yawning on beach, Helgoland, Germany. Second Place in the Comedy Award of the Terre Sauvage Nature Images Awards 2016.

Bernard Castelein / Grey seal (Halichoerus grypus) lying on sand, Helgoland, Germany

Bernard Castelein / Grey seal (Halichoerus grypus) lying down, Helgoland, Germany

Bernard Castelein / Grey Seal (Halichoerus grypus) covering face with flippers, Helgoland, Germany