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 March 1946
Comments Notes O N March ijth, 1945, I was in a convoy moving slowly south through the'Irish Sea. The day was brilliantly fine, the sea quite calm. In the morning the Welsh Hills were visible, but otherwise we saw neither coast. There was no fog, however. There was a v...
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