This spatial dataset contains krigged density surfaces for puffin in the non-breeding season, in UK waters.
Density surface maps were created by modelling ESAS data in order to identify regular areas of relative high densities of seabirds, at a 6km*6km grid. For more information please see:
Kober, K., Webb, A., Win, I., Lewis, M., O'Brien, S, Wilson, L.J, Reid, J.B., (2010), An analysis of the numbers and distribution of seabirds within the British Fishery Limit aimed at identifying areas that qualify as possible marine SPAs, JNCC Report 431, ISSN 0963-8091
http://jncc.defra.gov.uk/page-5622