The colony of Brünnich's guillemots (Uria lomvia) at Alkefjellet. This towering cliff of rock is on the north west side of the Hinlopen Strait that separates the two biggest islands in the Svalbard archipelago. The colony of 10s of thousands of breeding birds, is one of the biggest of its kind in Svalbard. The pictures were made when adult guillemots were flying back from sea to feed the juvenile birds. The birds were observed in the water and on the cliffs and photographed from a Greenpeace inflatable.