The May edition of "British Birds" includes a really fascinating article on Skomer Island National Nature Reserve by David Saunders (the first Skomer warden in the early 1960s) and Stephen Sutcliffe (warden there from 1986 to 1994).
If you already subscribe to BB then you will already have absorbed the article and hopefully enjoyed the read. If not, then it can be found in British Birds volume 110, May 2017, pages 278–295 - it's a really interesting article by two of Pembrokeshire's foremost Skomer aficionados.