Roger Powell / Rear view of Ruff (Philomachus pugnax) in full display at the lek. Varanger, Finmark, Norway, May.

Roger Powell / Satellite male Ruff (Philomachus pugnax) in full display at the lek. Varanger, Finmark, Norway, May.

Roy Mangersnes / Aurora Borealis above the Arctic Ocean off the northen coast of Finnmark, Norway, April

Orsolya Haarberg / Black-throated diver (Gavia arctica) portrait on water, Pasvik, Finmark, Norway, June

Roger Powell / Whooper Swan (Cygnus cygnus) pair swimming in tandem, Syltefjord, Finmark, Norway, June.

Roger Powell / Whooper Swan (Cygnus cygnus) incubating on top of a huge nest made from surrounding aquatic vegetation, Borselvefjellet, Porsanger, Finmark, Norway

Roger Powell / Slavonian / Horned grebe (Podiceps auritus) adopting threatening pose to ward off an intruder into his breeding territory. Kolvik, Porsanger, Finmark, Norway

Roger Powell / Pair of Eurasian Oystercatchers (Haematopus ostralegus) courting and walking away from each other on their breeding territory. Sandvik, Porsanger fjord, Finmark, Norway

Roger Powell / Pair of Eurasian Oystercatchers (Haematopus ostralegus) greeting each other on their breeding territory. Sandvik, Porsanger fjord, Finmark, Norway

Roger Powell / Pair of Eurasian oystercatchers (Haematopus ostralegus) courting and walking in tandem with each other on their breeding territory. Sandvik, Porsanger fjord, Finmark, Norway

Roger Powell / Pair of Eurasian Oystercatchers (Haematopus ostralegus) calling and greeting each other on their breeding territory. Sandvik, Porsanger fjord, Finmark, Norway

Roger Powell / Eurasian Oystercatcher (Haematopus ostralegus) guarding its breeding territory. Sandvik, Porsanger fjord, Finmark, Norway