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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...

Notes

01 July 1941 Comments Notes ON May 18th, 1924, my father and I found the nest of a Siskin (Carduelis spinus) at Acharacle, Argyll. It was about twenty feet up on the spreading bough of an exotic fir (species not recorded) in a large garden. When my father climbed to it, both birds ...

Report on the effect of the severe winter of 1939-40 on bird life in the area within 20 miles of London

01 July 1941 Comments Main paper THIS report is intended to supplement the " Report on the effect of the severe winter of 1939-40 on bird-life in the British Isles " which has already appeared in this journal (antea, Vol. xxxiv, pp. 118, 142), and details which were given there, such as ...

Intelligence tests with Tits

01 July 1941 Comments Main paper the idea of testing the ability of birds to solve problems, I carried out some experiments in February, 1941, which seemed to need a definite amount of intelligence for their solution. My subjects were a pair of Blue Tits (Parus c. obscurus), and a pair o...

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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

Notes

Report on the effect of the severe winter of 1939-40 on bird life in the area within 20 miles of London

Intelligence tests with Tits

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