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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...

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...

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...

Birds of a Trans-Atlantic Voyage in Late Spring 1954

01 February 1956 Comments Main paper (Fair Isle Bird Observatory) ALTHOUGH there are many papers concerning- the birds observed during- transects of the North Atlantic there is still room for advancement of our knowledge of seasonal distribution over this vast expanse of ocean. The present p...

Delayed Emigration of Certain Birds in Autumn 1954

01 February 1956 Comments Main paper SEVERAL notes received by the Editors of British Birds in the winter of 1954-55 confirmed the impression of some individual observers that the departure of migratory birds, both summervisitors and passage-migrants, had been unusually delayed in the autumn...

The Migrations of British Chats

01 February 1956 Comments Main paper T H E purpose of this paper is to analyse the recovery records of birds of species of " c h a t s " ringed in the British Isles under the scheme now managed by the Bird-Ringing Committee of the British Trust for Ornithology and earlier by the late H . F ....

Records of Wood Sandpipers in Britain in the Autumn of 1952

01 February 1956 Comments Main paper DURING the autumn of 1952, as noted previously (antea, vol. xlv, p. 432), a considerable passage of W o o d Sandpipers (Tringa glareola) was observed in many parts of Great Britain, particularly in the south-east. There is some evidence that the numbers o...

Letters

01 October 1950 Comments Letters --I am engaged in investigating t h e ringing records of Blue Tits. Amongst the known causes of death it is astonishing to find that the mousetrap is a principal one. I t may be necessary to place r a t and mouse traps in gardens, b u t I suggest that the...

Notes

01 October 1950 Comments Notes WITH reference to the note (antea, p. 54) on this topic, in June, 1949, an Arctic Tern (Sterna macrura) made repeated stoops at my companion, Dr. H. K. Whitehouse, while he was standing by the bank of the river in Hvalfjordur a few yards from our camp in...

Methods of determining breeding-cliff populations of Guillemots and Razorbills

01 October 1950 Comments Main paper A CENSUS of cliff-nesting seabirds is usually carried out by making a careful count of every occupied nest, thus giving the number of breeding pairs. This is the most accurate method and can be carried out comparatively easily in the case of species that ...

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Letters

Reviews

Notes

Birds of a Trans-Atlantic Voyage in Late Spring 1954

Delayed Emigration of Certain Birds in Autumn 1954

The Migrations of British Chats

Records of Wood Sandpipers in Britain in the Autumn of 1952

Letters

Notes

Methods of determining breeding-cliff populations of Guillemots and Razorbills

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