Fifty years ago

01 June 1980 Comments Other 'ROOKS COLLECTING RUBBER OBJECTS. The Rooks (Corvus f. frugilegus) of Wanstead Park have a strange custom which may not have been brought before the notice of readers of British Birds. For more than twenty years they have been in the habit of collectin...
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The Building of A Rookery

01 January 1951 Comments Main paper OGILVIE OBSERVATIONS on Rook (Corvus frugilegus) behaviour during the incubation period and in winter have been recorded in previous issues of British Birds (antm, vol. xl, pp. 135-139, and xlii, pp. 65-68). The notes which follow are based on a study of...
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An autumn habit of the Rook

01 August 1928 Comments Main paper is a habit of the Rook {Corvus f. frugitegus) which seems to me to call for some explanation and investigation. My observations have been confined to Cumberland and Westmorland, and it would be interesting to know whether the habit has been observed in ot...
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