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Radar films of migration over eastern England

01 September 1962 Comments Main paper Research Laboratories of Marconi's Wireless Telegraphy Co. Ltd., at Great Baddow, Chelmsford, Essex, have taken films of a radar display by time-lapse photography and many of these provide a clear record of bird migration; some were shown at the British O...

Notes

01 December 1944 Comments Notes I HAVE previously (antea, Vol. xxxiii, p. 265) given examples from the Robin (Erithacus rubecula) and the Blackcock (Lyrurus tetrix) of a male attempting to disturb the coition of another pair. Similar behaviour is characteristic of geese and swans, as n...

Notes

01 November 1944 Comments Notes ALTHOUGH Carrion-Crows (Corvus c. cowrie) and Rooks (Corvus f, frugilegws) have been recorded occasionally as nesting on electric pylons, it may be of interest to record that as a result of observations by Mr. A. E. Billett at Weston-super-Mare, Somerset...

Changes in Status among British breeding Birds

01 October 1944 Comments Main paper STONE-CURLEW (Burhinus ce. cedicnemus). In second half of 19th century became extinct in Cotswolds (Gloucestershire and N.W. Oxfordshire) and in E. Midlands (Leicestershire, Rutland, Nottinghamshire and Lincolnshire). Has decreased elsewhere (almost extin...

Changes in Status among British breeding Birds

01 August 1944 Comments Main paper IN view of the present interest in animal fluctuations, a survey has been "made of every bird breeding in the British Isles, to see what proportion of the species have increased, decreased or remained at about the same level during the last one, hundred y...

Notes

01 April 1943 Comments Notes MARTINSON of Foresters Lodge, Wolsingham, in the Wear valley, rcports that from January ioth to 28th, 1943, he had under Observation five Two-barred Crossbills (Loxia l. bifasciala). Flocks of the Common Crossbill (Loxia c. curvirostra) have been present...

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Radar films of migration over eastern England

Notes

Notes

Changes in Status among British breeding Birds

Changes in Status among British breeding Birds

Notes

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