Literature
  • 1990
  • Parental feeding in the Red-throated Diver Gavia stellata. Ibis 132: 1-13
  • Erikstad 1990
  • Winter diets of four seabird species in the Barents Sea after a crash in the Capelin stock. Polar Biol. 10: 619-627
  • Erlinge 1967
  • Food-habits of the fish-otter, Lutra lutra, in south Swedish habitats. Viltrevy Swedish Wildlife, 74p
  • Erlinge, 1981
  • The diet of otters Lutra lutra L. in Denmark. Natura Jutlandica 19: 161-165
  • Essen 1998
  • Foerageergedrag van de Grote Stern Sterna sandvicensis. BEON Report 98-12, Werkdocument RIKZ/OS-98.117, 33pp
  • 1975
  • Gulls and Puffins on North Rona. Bird Study 22: 239-247
  • Ewins 1993
  • Pigeon Guillemot. In: A. Poole and F.Gill (eds.) The birds of North America 49 Academy of Natural Sciences of Philadephia and the American Ornithologists' Union, Washington DC
  • Ewins 1990
  • The diet of Black Guillemots Cepphus grylle in Shetland (Scotland, UK). Holarctic Ecology 13: 90-97
  • Ewins 1985
  • Growth, diet and mortality of Arctic Tern Sterna paradisaea chicks in Shetland. Seabird 8: 59-68
  • Ewins 1987
  • Opportunistic feeding of Black Guillemots Cepphus grylle at fishing vessels. Seabird 10: 58-59