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Notes

01 September 1971 Comments Notes Moorhen walking underwater.--In view of the controversy mentioned in a footnote in The Handbook (5: 198-199) and the various records of Moorhens Gallinula chloropus submerging or swimming underwater which have been published in British Birds since that ti...

Rook numbers in Nottinghamshire over 35 year

01 September 1971 Comments Main paper frugilegus in Nottinghamshire in 1962 and compares the figures with those from four other censuses in the previous 34 years. The first counts were made by A. Roebuck in 1928 (Roebuck 1933) and again in 1932. There was then a wartime census by A. I. H. Doc...

Letter

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...

The Rook Roosts of South Northumberland and the Boundaries Between their Feeding Territories

01 August 1933 Comments Main paper T H E observations on which this account is based were begun in the Christmas vacation of the winter 1931-32, when one roost was located and a knowledge obtained of the extent of its feeding territory in certain directions. In the following year from mid-...

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Notes

Rook numbers in Nottinghamshire over 35 year

Letter

The Rook Roosts of South Northumberland and the Boundaries Between their Feeding Territories

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