Staffan Widstrand / Kittiwake colony (Rissa tridactyla) on cliffs, Syltefjordstauran, Varanger peninsula, Arctic Norway

Staffan Widstrand / Kittiwake colony (Rissa tridactyla) on cliffs, Syltefjordstauran, Varanger peninsula, Arctic Norway

Terry Whittaker / Man being lowered down cliff to collect seabird eggs including those of Common murre/ guillemot (Uria aalge) and Black-legged kittiwake (Rissa tridactyla). Gannet (Morus bassanus) colony on opposite c...

Terry Whittaker / Man being lowered down cliff to collect seabird eggs including those of Black-legged kittiwake (Rissa tridactyla). Skoruvikurbjarg cliffs, Langanes Peninsula, Iceland. May 2018.

Terry Whittaker / Man harvesting eggs in Black-legged kittiwake (Rissa tridactyla) colony, on steep cliff face. Skoruvikurbjarg cliffs, Langanes Peninsula, Iceland. May 2018.

Terry Whittaker / Man being lowered down cliff to collect seabird eggs including those of Black-legged kittiwake (Rissa tridactyla) and Common murre / guillemot (Uria aalge). Skoruvikurbjarg cliffs, Langanes Peninsula,...

Terry Whittaker / Common murre / guillemot (Uria aalge) and Black-legged kittiwake (Rissa tridactyla) eggs in box and egg boxes. Collected from Skoruvikurbjarg cliffs, Langanes Peninsula, Iceland. May 2018.

Terry Whittaker / Common murre / guillemot (Uria aalge), Black-legged kittiwake (Rissa tridactyla) and Gull (Larus sp) eggs for sale at Reykjavik Weekend Market, Iceland. 2018.

Terry Whittaker / Common murre / guillemot (Uria aalge), Black-legged kittiwake (Rissa tridactyla) and Gull (Larus sp) eggs for sale at Reykjavik Weekend Market, Iceland. 2018.

Terry Whittaker / Common murre / guillemot (Uria aalge), Black-legged kittiwake (Rissa tridactyla) and Gull (Larus sp) eggs for sale at Reykjavik Weekend Market, Iceland. 2018.

Terry Whittaker / Kittiwake turning egg (Rissa tridactyla). Snaefellsness Peninsula, Iceland.

Terry Whittaker / Kittiwake (Rissa tridactyla) carrying nesting material, Skoruvikurbjarg cliffs, Langanes Peninsula. Northeast Iceland. May.