17. Hudson, P.J. 1985. Kleptoparasitic behaviour of a Herring Gull Larus argentatus at a Puffin Fratercula arctica colony. Seabird 8: 53-57.
14. Hudson, P.J. 1985. Population parameters for the Atlantic Alcidae. In D.N. Nettleship & T.R. Birkhead (eds). The North Atlantic Alcidae. Academic Press, London. pp 233-261.
9. Hudson, P.J. 1984. Plumage variation in Razorbill chicks. British Birds 77: 208-209.
7. Hudson, P.J. 1983. The variation and synchronisation of daily weight increments of Puffin chicks Fratercula arctica. Ibis 125: 557-561.21-36.
5. Hudson, P.J. 1982. Nest site characteristics and breeding success in the Razorbill, Alca torda. Ibis 124: 355-359.
2. Hudson, P.J. 1979. The Parent-Chick feeding relationship of the Puffin, Fratercula arctica. Journal of Animal Ecology 48: 889-898. Download pdf
1. Birkhead, T.R. & Hudson, P.J. 1977. Population parameters for the Common Guillemot Uria aalge. Ornis Scandinavica 8: 145-154.