Watching migration by radar

01 August 1959 Comments Main paper So FAR AS I know, the first time that radar echoes were definitely identified as coming from birds was in the spring of 1940, when an experimental equipment on a wavelength of 50 cm. at Christchurch, Hampshire, detected gulls (Larus spp.) (Shire, 1958). U...
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Notes

01 February 1936 Comments Notes ON January 17th, 1936, the Prime Minister, the Archbishop of Canterbury, the Chancellor and Vice-Chancellor of Oxford University and others launched a Viscount Grey Memorial Appeal, one of whose objects is to develop " the existing scheme of research main...
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