Affiliation: | a IMARES Institute for Marine Resources and Ecosystem Studies, Wageningen-UR, PO Box 167, 1790AD Den Burg (Texel), The Netherlands b Le CHENE, Centre de Sauvegarde de la Faune Sauvage et Musée de la Nature, 12 Rue du Musée, F-76190 Allouville-Bellefosse, France c Norðuri í Sundum 7, FO-410 Kollafjørður, Faroe Islands d Fairclough Ecological Orkney FEO Viewforth, Swannay by Evie, Orkney, KW17 2NR, Scotland, UK e Kermouroux, FR-56 470 Saint Philibert, France f Research and Technology Centre West coast FTZ, University of Kiel, Hafentörn 1, D-25761 Büsum, Germany g Naturhistorisk Museum Skagen, Skagen Naturcenter, Flagbakkevej 30, DK-9990 Skagen, Denmark h University of Aberdeen (SOTEAG), Sumburgh Head Lighthouse, Virkie, Shetland ZE3 9JN, Scotland, UK i Zoological conservator, Í Geilini 37, FO-270 Nólsoy, Faroe Islands j Groupe Ornithologique Normand, 118 route d’ORCHER, F-76700 Gonfreville l’Orcher, France k Faroe Marine Research Institute c/o Náttúrugripasavnið, Fútalág 40, FO-100 Tórshavn, Faroe Islands l Postveien 43, N-4563 Borhaug, Norway m Skagen Uddannelsescenter SUC, Vestmolen 15, DK-9990 Skagen, Denmark n Research Institute for Nature and Forest, Kliniekstraat 25, B-1070 Brussels, Belgium o 9 Haswell Gardens, North Shields, Tyne and Wear, NE30 2DP, England, UK |