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Crossbills in Britain and Ireland in 1963

01 December 1964 Comments Main paper T H E I R R U P T I O N S O F Crossbills Loxia spp. into Britain in the summer and autumn of 1962 were described by Williamson (1963a), the account being supplemented by a list of records up to the end of the year (Williamson 1963b). The midsummer arrival...

Letters

01 November 1964 Comments Letters SIRS,--It would be interesting to know if the reports published in the popular Press earlier this year stating that large numbers of Rooks were making daily incursions to the Romney Marshes from the French coast, have ever been verified by a competent orn...

The Sequence of Plumages of the Rook, With Special Reference to the Moult of the " Face."

01 May 1963 Comments Main paper I T has always been a disputed point as to whether the Rook (Oorvus f. frugihgus) gets its bare " face " by means of abrasion of the feathers or by a moult. Most ornithologists have favoured the moult theory or have regarded it as a " natural peculiarity....

The food of nestling Rooks near Oxford

01 September 1959 Comments Main paper frugilegus) carried out while I was holding a Nature Conservancy Post-Graduate Studentship at the Edward Grey Institute, Oxford, in 1952 and 1953. All four rookeries concerned were within 10 miles of Oxford and were on rather similar farming land. T h e f...

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...

Observations in a rookery during the incubation period

01 May 1947 Comments Main paper ...

Letter

01 November 1946 Comments Letters S I R S , -- I have observed no less than twenty-three instances between February 27th and March 7th, 1946, where one Rook (Corvus f. frugUegus) was either in or standing upon t h e nest with two attendant Rooks perched close together a t some twelve t o ...

Young Rooks, their Survival and Habits

01 April 1936 Comments Main paper I WROTE on this subject in April, 1935 (antea, Vol. XXVIII., p. 322). I have pursued it for another year and have had considerably more information, all corroborative of the preceding, but in no wise tending to increase my estimated number of surviving yo...

Habits of the Rook: Some notes on an Essex Rookery

01 March 1936 Comments Main paper FOR over twelve years I have kept regular notes on the habits of Rooks (Corvus f. frugilegus) at a rookery near my home in Essex. A considerable amount of information has been obtained during this period, but the following notes refer only to certain aspe...

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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Crossbills in Britain and Ireland in 1963

Letters

The Sequence of Plumages of the Rook, With Special Reference to the Moult of the " Face."

The food of nestling Rooks near Oxford

The Building of A Rookery

Observations in a rookery during the incubation period

Letter

Young Rooks, their Survival and Habits

Habits of the Rook: Some notes on an Essex Rookery

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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