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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01 August 1933
Comments Letters SIRS,- --In his " Survey of the Rooks in the Midlands," Mr. Roebuck deals (antea, p. 23) with the change in population on breeding. But in only a few lines he tells us that, after May, either a wholesale slaughter in some rookeries or a gradual fall in nu...
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