Gannet - 1949

Sula bassana

The colony on Grassholm now (1948) numbers approximately 7,000 pairs.  Its history is to be found in various places: in I knew and Island by R.M.Lockley; and in The Breeding, Distribuion, History and Population of the North Atlantic Gannet by J.Fisher and H.G.Vevers (Journal of Animal Ecology, 1943, XIX 177-8).

R.M.Lockley, G.C.S.Ingram, H.M.Salmon, 1949, The Birds of Pembrokeshire, The West Wales Field Society