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Letters

01 September 1953 Comments Letters SIRS,--In the Vosges mountains in France during the first World War earthenware pots especially designed for sparrows to nest in were to be seen on the walls of a great many farms and I have no doubt the practice still persists. These served a double purp...

Reviews

01 September 1953 Comments Reviews Rare and Extinct Birds of Britain. By Ralph Whitlock. (Phcenix House, London, 1953). 21s. I t is open to question whether a satisfactory book can be written on the subject of our rare and extinct birds. To contribute anything original to knowledge in this...

Notes

01 September 1953 Comments Notes Nesting of Curlew on river shingle-beds.--Of late years Curlews (Numenius arquata) have been nesting in increasing numbers on inland pastures and meadows in Northumberland, whereas formerly they were birds of the moorlands, nesting on heather-clad hills ...

Field observations on the biology of the Marsh Tit

01 September 1953 Comments Main paper MAY (1949) asserts that as pair-formation behaviour patterns " a r e not related to the sex act, which is the criterion for 'sexual behaviour' " , pair-formation is not sexual behaviour, at any rate in the Willow Warbler (Phylloscopus trochilus) which he...

Studies of some species rarely photographed. LI. Arctic Warbler

01 September 1953 Comments Main paper (Plates 48-55) P. O. SWANBERG obtained these unique photographs of the littlestudied Arctic Warbler (Phylloscopus borealis) in 1952 in Swedish Lapland which is the north-western outpost in this bird's breeding-range. The typical race, often known as Evers...

Notes

01 June 1943 Comments Notes As The Handbook of British Birds states that the Wood-Lark (Lullula a. arborea) does not apparently now nest in Essex, it is perhaps worth recording that on April n t h , 1943 I found a nest of this species on a piece of rough ground a few miles south of...

An investigation into the roles of males in relation to incubation

01 June 1943 Comments Main paper IN response to the Editor's request, I will endeavour in this paper to throw some fresh light on the subject of Incubation, of which we appear to have far from a full understanding. I claim no more than an attempt to probe into a subject of great complexi...

Some Observations on the Marsh-Harrier

01 June 1943 Comments Main paper (Plates 1-4.) THE status of the Marsh-Harrier {Circus a. esruginosus) as a breeding bird in Great Britain has for many years been very precarious. For at least 45 years' prior to 1915 there are no records of successful breeding though three attempts were ...

Review

01 June 1943 Comments Reviews Bird Display : An Introduction to the study of Bird Psychology. By Edward A. Armstrong. (Cambridge Univ. Press, 1942). Illustrated: 2 1 / - n e t ; T H I S is certainly one of t h e most useful and welcome bird books t h a t have appeared for a long time,...

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Letters

Reviews

Notes

Field observations on the biology of the Marsh Tit

Studies of some species rarely photographed. LI. Arctic Warbler

Notes

An investigation into the roles of males in relation to incubation

Some Observations on the Marsh-Harrier

Review

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