1928. Popular bird-watching becomes scientific: The first national bird census in Britain

A correspondent (1931) The Great Crested Grebe. The Times, 13 June.

A correspondent (1932) Birds of the meres. The Times, 4 October.

Allen DE (2009) Amateurs and professionals. In: Bowler PJ Pickstone JV (eds) The Cambridge History of Science: The Modern Biological and Earth Sciences. Cambridge: Cambridge University Press, pp. 15–33.

Bircham P (2007) A History of Ornithology. London: Collins.

Bonney R (1996) Citizen science: A lab tradition. Living Bird 15(4): 7–15.

British Trust for Ornithology (BTO) (1936) Second Report. Oxford: BTO.

Burkhardt RW (2005) Patterns of Behavior: Konrad Lorenz, Niko Tinbergen, and the Founding of Ethology. Chicago, IL: The Chicago University Press.

Gieryn TF (1983) Boundary-work and the demarcation of science from non-science: Strains and interests in professional ideologies of scientists. American Sociological Review 48(6): 781–795.

Harrisson TH Hollom PAD (1932) The great crested grebe enquiry, 1931. British Birds 26: 62–92.

Hinton J (2013) The Mass Observers: A History, 1939-1949. Oxford: Oxford University Press.

Huxley J (1916) Bird-watching and biological science. Auk 33: 142–161.

Huxley J (1959) The British contribution to our knowledge of the living bird. Ibis 101(1): 103–106.

Kohler RE (2006) All Creatures: Naturalists, Collectors and Biodiversity, 1850-1950. Princeton, NJ: Princeton University Press.

Macdonald H (2002) ‘What makes you a scientist is that way you look at things’: Ornithology and the observer 1930-1955. Studies in History and Philosophy of Biological and Biomedical Sciences 33: 53–77.

Moss S (2004) A Bird in the Bush: A Social History of Birdwatching. London: Aurum.

Nicholson EM (1926) Birds in England: An Account of the State of Our Bird Life and a Criticism of Bird of Protection. London: Chapman and Hall.

Nicholson EM (1929 [1927]) How Birds Live: A Brief Account of Bird-life in the Light of Modern Observation, 2nd edn. London: Williams and Norgate.

Nicholson EM (1929a) Report on the ‘British birds’ census of heronries, 1928. British Birds 22: 270–323.

Nicholson EM (1929b) The Study of Birds. London: Benn.

Nicholson EM (1931) The Art of Bird-Watching: A Practical Guide to Field Observation. London: HF&G Witherby Ltd.

Selous E (1901) Bird Watching. London: JM Dent.

Toogood M (2011) Modern observations: New ornithology and the science of ourselves, 1920-1940. Journal of Historical Geography 37: 348–357.

Vetter J (2011) Introduction: Lay participation in the history of scientific observation. Science in Context 24(2): 127–141.

Witherby HF (1907) Editorial. British Birds 1: 3.