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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...

An Index of Heron Population

01 April 1935 Comments Main paper WHEN the " British Birds Census of Heronries Report " was published in 1929 it was recommended that another complete census of British heronries should be taken not later than about 1940, if the full advantages of the 1928 Census were to be reaped. On the...

Notes on the Rook: with special Reference to the proportion of young in flocks, and the change over from the winter roost to the Rookery

01 April 1935 Comments Main paper A recent book, The Life of the Rook, by G. K. Yeates, makes one realize how much remains to be known about this bird, and emboldens me to give a summary of notes I have taken. There is a small rookery at my house. I t is not a winter roost. The number of ...

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The Building of A Rookery

An Index of Heron Population

Notes on the Rook: with special Reference to the proportion of young in flocks, and the change over from the winter roost to the Rookery

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