Letters

01 February 1956
Comments Letters S I R S , -- A census of breeding Great Black-backed Gulls (Larus marinns) in England and W a l e s in 1956 has been approved as an investigation of the British Trust for Ornithology. As organise* I shall be glad of offers of help from those who are willi...
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Reviews

01 February 1956
Comments Reviews By SETON GORDON, C.B.E. (Collins " New N a t u r a l i s t , " London, 1955). 246 pages, 17 photographs. 16s. A MONOGRAPH on the Golden Eagle in Scotland is long overdue and who could have produced a better one than Seton Gordon? For half a century the a...
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Notes

01 February 1956
Comments Notes Displacement coition in the Mallard.--On ioth May, 1951, a t Clayton-le-dale, near Blackburn, Lancashire, I was engaged in watching the behaviour of a pair of Mallard (Anas platyrhynchos) tending fifteen young, which were newly hatched. T h e young fed fo...
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Letters

01 March 1952
Comments Letters SIRS,--We are hoping to collate information about visible migration over, and on the shores of, the Mediterranean. Very little has been published on the subject and no doubt a good many unpublished records, especially those made on voyages, are in existen...
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Reviews

01 March 1952
Comments Reviews British Bird Boohs : An Index to British Ornithologv, A.D. 1481 to J.I). 1948. By Raymond Irwin (London, Grafton & Co., 1951. 63/-). The title of this book gives a very inadequate idea of its contents since it indexes and classifies, not only books, b u t...
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Notes

01 March 1952
Comments Notes The Display of the Blackbird.--During observations on four pairs of Blackbirds (Turdus merula) in 1949, and on the same four pairs with the addition of another in 1950, the following display was noted. All of the birds concerned were recognizable in the ...
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