Notes

01 August 1959
Comments Notes Display flight of Bitterns.--On 18th May 1959, at midday, I saw three Bitterns (Botaurus stellaris) rise from a re,ed-bed near Walberswick, Suffolk, and mount in a fresh N . E . breeze to a height which I estimated to be 600 or 700 feet. Not much wingflap...
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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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