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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...

Simultaneous Watch for migrant Swifts, May 11th, 1947

01 May 1948 Comments Main paper IN the spring of 1947 the British Trust for Ornithology invited as many as possible of its members and others interested to undertake a simultaneous watch of the movements of Swifts (Apus a. apus) on a pre-selected day--May n t h , 1947.Five similar watch...

Notes

01 May 1948 Comments Notes ON December 18th, 1946, I saw a Nutcracker (Nucifraga caryocaiactes subsp.?) about two miles west of Turners Hill, Sussex. It flew across the road and settled in a tree about 35 yards away in full view. I was able to watch the bird for about three minute...

The index of Heron population, 1947

01 May 1948 Comments Main paper THE number of heronries on which reports for 1947 were received at the Edward Grey Institute was 158, or 13 less than in the previous year. Of these 122 were in England, 6 in Wales, 11 in Scotland and 19 in Ireland. We are indebted to 63 informants, of wh...

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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

Simultaneous Watch for migrant Swifts, May 11th, 1947

Notes

The index of Heron population, 1947

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