1. BROOKE , M. DE L. 1973 Age of breeding Manx Shearwaters 15 18
2. BROOKE , M. DE L. 1977 The breeding biology of the Manx Shearwater D. Phil. thesis
3. Survival and recruitment in the Herring Gull Larus argentatus;CHABRZYK;J. Anim. Ecol.,1976
4. Manx Shearwaters on Skomer; population and mortality due to gull predation;CORKHILL;Br. Birds.,1973