Royal Entomological Society of London
… (1971, 1978, 1980)
Butterfly Research Association
… (1979, London)
Sociobiology Conference
… (1979, Leeds)
Northern Ecologists
… (1979, Leeds)
British Entomological and Natural History Society
… (1980, London)
Institute of Biology
… (1980, Salford)
British Museum (Natural History)
… (1980, London, Scientific Officers’ Association)
Experimental Psychology Society
… (1981, London)
British Trust for Ornithology
… (1981, R and M Conference, Swanwick)
Institute of Physics
… (1981, Liverpool)
Imperial Chemical Industries
… (1981)
Imperial Chemical Industries
… (1982)
Royal Institute of Navigation
… (1982)
Association for Science Education
… (1983, Manchester)
Royal Institute of Navigation
… (1983)
Royal Medical Society
… (1983, London)
Zoological Society of London
… (1983, London)
Society for Experimental Biology
… (1984, Oxford)
British Association
… (1984, Norwich)
Society for Experimental Biology
… (1985, Norwich)
Society for Experimental Biology
… (1986, Nottingham)
Society for Experimental Biology
… (1988, Lancaster)
Institute of Physics
… (1988, Manchester)
Association for Study of Animal Behaviour
… (1989, London)
British Ecological Society
… (1990, Manchester)
Association for Study of Animal Behaviour
… (1991, Manchester)
Royal Institute of Navigation
… (1992, London)
Biology of spermatozoa
… (1992, Sheffield)
Society for Experimental Biology
… (1993, Canterbury)
Child & adolescent psychiatry
… (1993, Regional Study Day, Manchester)
Biology of spermatozoa
… (1993, Sheffield)
British Andrology Society
… (1993, Manchester)
British Psychological Society
… (1994, Brighton)
British Fertility Society
… (1995, Liverpool)
Cheltenham Book Festival
… (1997, Cheltenham)

International Congress of Entomology
… (1972, Canberra, Australia)
Animal Migration Symposium
… (1979, SEB, Lancaster)
Amsterdam Zoo
… (1980, Amsterdam)
Avian Navigation
… (1981, Tirrenia, Italy)
Biology of Butterflies
… (1981, Royal Entomological Society, London)
Magnetoreception and Magnetite
… (1981, Am. Geophys. Union, San Francisco)
Animal Migration
… (1983, U. of Texas at Austin, Port Aransas)
Electromagnetic Waves and Neural Function
… (1984, Corsendonk, Belgium)
Cognitive Processes and Spatial Orientation
… (1985, NATO ASI, Aix-en-Provence, France)
European Society for Evolutionary Biology
… (1987, Basle, Switzerland)
Navigation by Birds and Humans
… (1989, Royal Institute of Navigation, Cardiff)
Atmospheric and Geophysical Effects
… (1989, Stockholm)
Animal Coloration (Norwegian Science Council)
… (1990, Bergen)
IX Nordiska Etologisymposiet
… (1990, Stockholm)
Ecology & Conserv. of Palearctic-African Migrants
… (1991, Norwich)
Animal Orientation, Navigation and Migration
… (1991, Birmingham, SEB)
Maturation, Brain Development and Behaviour
… (1992, Geilo/Oslo, Norway)
Human Behavior and Evolution Society
… (1992, Albuquerque, NM, USA) (Plenary Talk)
Behavioral Ecology Congress
… (1992, Princeton, New Jersey, USA)
Navigation by Birds and Humans
… (1993, Royal Institute of Navigation, Oxford)
Academy of Sex Research
… (1994, Edinburgh)
Society for Human Ethology
… (1996, Vienna, Austria) (Keynote Talk)
Danish Book Fair
… (1997, Denmark)
Partible Paternity Symposium, AAAS
… (1999, Anaheim, California)
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Oxford
Cambridge
Sussex
Aberdeen
St. Andrews
Imperial College (London)
Glasgow
Durham
Newcastle
Sheffield
Birmingham
Hull
Exeter
Bristol
East Anglia
Nottingham
Salford
York
Liverpool
Queen Mary’s College (London)
Keele
UMIST (Manchester)
Bradford
Liverpool Polytechnic
Lancashire Polytechnic
Manchester Metropolitan
Derby
Eton College
Jessop Hospital for Women (Sheffield)

Princeton (USA)
… (1981)
Cornell (USA)
… (1981)
MIT, Boston (USA)
… (1981)
Swarthmore (USA)
… (1981)
Frankfurt (Germany)
… (1982)
Aarhus (Denmark)
… (1982)
Bergen (Norway)
… (1990)
Ann Arbor, Michigan (USA)
… (1992)
Erasmus University, Rotterdam (Netherlands)
… (1995)
Lund (Sweden)
… (1995)
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