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 August 1940 Comments Notes ON June 4th, 1940, on a common in Cheshire I found a nest of a Tree-Pipit (Anthus t. trivialis) with recently hatched young. The parent bird sat very close after going down with food, whilst I was searching for the nest; when it left the nest it fluttere...
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Notes

01 July 1940 Comments Notes AT a rookery in Surrey, on March 30th, 1940, at 12.5 p.m., Rooks (Corvus f. frugilegus) were seen to change over at the nest. One bird--obviously a male--flew in and standing on the nest edge fed his plainly visible mate. During the meal wing-action by t...
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