Literature
  • Willems, 1998
  • Ecological aspects of Pygmy Cormorants Phalacrocorax pygmeus at Prespa, Greece, May-August 1996. WIWO Report 60: 70pp
  • Brenninkmeijer, Stienen 1992
  • Ecologisch profiel van de Grote Stern (Sterna sandvicensis). Rin-rapport 92/17: 107 pp.
  • Belopol'skii 1957
  • Ecology of sea colony birds of the Barents sea [Ekologiya Morskikh Kolonial'nykh Ptits Barentsova barya]. Isr. Progr. Sc. Transl., Jerusalem, 1961
  • Libois, Rosoux 1989
  • Ecology of the European Otter, Lutra lutra, in the Marais Poitevin (France) area: I. The consumption of eels. Vie et Milieu 39: 191-198
  • Stienen, Brenninkmeijer 1998
  • Effects of changing food availibility on population dynamics of the Sandwich Tern Sterna sandvicensis. BEON Rapport nr. 98-3, 69pp
  • , Eddington 1998
  • Effects of meal size on otolith recovery from fecal samples of Gray and Harbor Seal pups. Marine Mammal Science 14: 789-802
  • Barrett, Anker-Nilssen 1997
  • Egg-laying, chick growth and food of Black Guillemots Cepphus grylle in North Norway. Fauna norv. Ser. C., Cinclus 20: 69-79
  • Löhmer, Vauk 1970
  • Ein weiterer Beitrag zur Ernährung Helgoländer Silbermöwen (Larus argentatus). Vogelwarte 25: 242-245
  • Kubetzki 1997
  • Ernährungsökologie von Sturmmöwen (Larus canus L., 1758) vershiedener Kolonien an der deutschen Nordseeküste. Msc thesis Institut fur Angewandte Zoologie der Reinischen Friedrich-Wilhelms-Universita/t, Bonn, 87pp
  • Dellinger, Trillmich 1988
  • Estimating diet composition from scat analysis in otariid seals (Otariidae): is it reliable?. Can. J. Zool. 66: 1865-1870
  • Gales, Cheal 1992
  • Estimating diet composition of the Australian Sea-lion (Neophoca cinerea) from scat analysis: an unreliable technique. Wildlife Research 19: 447-456
  • 1994
  • Estuarine winter feeding patterns of Little Grebes Tachybaptus ruficollis in central Wales. Bird Study 41: 15-24