Seabird distribution in the North Sea: final report of the Nature Conservancy Council Seabirds at Sea Team November 1979 - November 1982
Blake, B.F.; Tasker, M.L.; Jones, H.; Dixon, P.; Mitchell, T.J.; Langslow, D.R. (1984). Seabird distribution in the North Sea: final report of the Nature Conservancy Council Seabirds at Sea Team November 1979 - November 1982. Nature Conservancy Council: Huntington. ISBN 0-86139-225-6. 3 volumes pp.
Research Institute for Nature and Forest (INBO). European Seabirds at Sea - data collected by the Research Institute for Nature and Forest (INBO). INBO Seabird distribution data (all trips)., more
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