The following references refer to the PIROP database and present an overview about the structure, application and value of the data:
-Brown R.G.B. 1967. Sea Birds off Halifax. Canadian Field-Naturalist 81:276-8.
-Brown R.G.B. 1970. Fulmar distribution: a Canadian perspective. Ibis 111:44-51.
-Brown, R.G.B. 1971. PIROP Instruction Manual. Canadian Wildlife Service, Dartmouth.
-Brown R.G.B.
... 1973. Transatlantic migration of Fulmars from the European Arctic. Canadian Field-Naturalist 87:312-3.
-Brown R.G.B. 1977. Atlas of eastern Canadian seabirds Supplement 1 Halifax-Bermuda transects. Canadian Wildlife Service, Ottawa.
-Brown R.G.B. 1979. Seabirds of the Senegal upwelling and adjacent waters. Ibis 121:283-92.
-Brown R.G.B. 1984. Seabirds in the Greenland, Barents and Norwegian Seas, February-April 1982. Polar Research 2:1-18.
-Brown R.G.B. 1986. Revised Atlas of Eastern Canadian Seabirds. Bedford Institute of Oceanography: Candian Wildlife Service, Ottawa.
-Brown R.G.B. 1988. The Wing-moult of Fulmars and Shearwaters (Procellariidae) in Canadian Atlantic Waters. Canadian Field-Naturalist 102:203-8.
-Brown R.G.B. 1991.Marine birds and climatic warming in the northwest Atlantic. In: Montevecchi W.A, Gaston A.J., eds. Studies of high-latitude seabirds.1.Behavioural, energetic, and oceanographic aspects of seabird feeding ecology. Volume Occasional Paper Number 1968. Canadian Wildlife Service, Ottawa.
-Brown R.G.B and D.N. Nettleship 1983. Seabird distribution studies. (Bedford Institute of Oceanography BIO Review '83). Canadian Wildlife Service, Ottawa..
-Brown R.G.B., Nettleship D.N., Germain P, Tull C.E., and Davis T. 1975. Atlas of eastern Canadian seabirds. Canadian Wildlife Service, Ottawa.
-Diamond A.W. 1985. A computer model of the energy demands of the seabirds of eastern and arctic Canada. Volume Final Report. Canadian Wildlife Service, Ottawa.
-Diamond A.W., Gaston A.J., and Brown R.G.B. 1986. Converting PIROP counts of seabirds at sea to absolute densities. Progress Notes No 164
-Diamond A.W., Gaston A.J., and Brown R.G.B.. 1993 Studies of high-latitude seabirds. 3.A model of the energy demands of the seabirds of eastern Arctic CanadaMontevecchi WA, ed. Occasional Paper Number 77. Canadian Wildlife Service, Ottawa
-Germain P., Brown R.G.B., and Tull C.E. 1973. Autumn seabird distribution in Canadian Arctic and Greenland waters. Studies on Northern Seabirds. Manuscript Report (No. Huettmann, F. 1997. TraPirp2: SQL PIROP import codes from ASCII Text into dBASE format. ACWERN (Atlantic Cooperative Wildlife Ecology Research Network), Faculty of Forestry and Environmental Management, University of New Brunswick, Fredericton, Canada.
-Huettmann, F. 1998. An Ecological GIS Research Application for the Northern Atlantic-The PIROP Database Software, Environmental Data Sets and the Role of the Internet/WWW. In: Riekert W.-F. and Tochtermann K. (Eds.) Hypermedia im Umweltschutz Proceedings of Deutsche Gesellschaft für Informatik (GI) and Forschungsinstitut für anwendungsorientierte Wissensverarbeitung (FAW) Ulm. Umwelt-Informatik aktuell; Bd.17, Metropolis Verlag/Marburg. pp. 213-217.
-Huettmann F. 2000a. Environmental Determination of Seabird Distribution in the Northwest Atlantic. Atlantic Cooperative Ecology Wildlife Research Network (ACWERN). University of New Brunswick, Fredericton, N.B./Canada
-Huettmann, F. 2000b. Making use of public large-scale environmental databases from the WWW and a GIS for georeferenced prediction modelling: A research application using Generalized Linear Models, Classification and Regression Trees and Neural Networks. In: Tochtermann, K. and Riekert W.-F. (Eds.) Hypermedia im Umweltschutz Proceedings of Deutsche Gesellschaft für Informatik (GI) and Forschungsinstitut für anwendungsorientierte Wissensverarbeitung (FAW) Ulm. Umwelt- Informatik aktuell; Bd.24, Metropolis Verlag/Marburg. pp. 308-312.
-Huettmann F. 2000. Seabird migration in the Canadian North Atlantic: moulting locations and movement patterns of immatures. Canadian Journal of Zoology 33:1-25.
-Huettmann, F. and Lock, T. 1997. A new software system for the PIROP database: data flow and an approach for a seabird-depth analysis. ICES Journal of Marine Science 54:518-23.
-Huettmann, F. and Diamond, A.W. 2001a. Using PCA Scores to classify species communities: an example using seabird classifications at sea. Journal for Applied Statistics 28:843-853.
-Huettmann F. and Diamond A.W. 2001b. Seabird colony locations and environmental determination of seabird distribution: A spatially explicit seabird breeding model in the Northwest Atlantic. Ecological Modelling 141: 261-298.
-King, W.B., Watson, G.E. and Gould, P.J. 1967. An application of automatic data processing to the study of the world ocean. Proceedings of the U.S. National Museum. 123, No 3609.
-Lock A.R., Brown R.G.B., Gerriets S.H. 1994. Gazetteer of Marine Birds in Atlantic Canada. Canadian Wildlife Service, Dartmouth NS Canada 
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