Letters

01 August 1952
Comments Letters SIRS,--The Ibis for April 1953 will include a group of papers on Visible Migration (particularly in passerine birds) as observed in various countries. The newly-formed Sub-committee on Visible Migration of the British Trust for Ornithology (see below) fee...
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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...
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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...
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Territory Reviewed

01 December 1933
Comments Main paper I T is now some twenty-five years since the theory of " territory " in bird life was enunciated b y Eliot Howard (1907-14, 1920, 1929) as the result of his intensive study of the behaviour of some of the Warblers and Buntings. The attractive nature of the...
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