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Letters

01 December 1956 Comments Letters I N T E R P R E T A T I O N O F V A R I A T I O N AMONG T H E YELLOW WAGTAILS S I R S , -- May I ask a little of your space in which to comment on some points in Dr. Mayr's summing-up (antea, pp. 115-119) of our present state of knowledge of the Yellow Wa...

Reviews

01 December 1956 Comments Reviews Edited by Major-General H . P . W . HUTSON, C.B., D . S . O . , O . B . E . , M.C. (Published by British Ornithologists' Union and distributed by H . F . & G. Witherby, Ltd., London, 1956). 268 pages. 21/-, postage 1/6. MANY ornithologists who spend much...

Notes

01 December 1956 Comments Notes Albinism related to age.--With reference to notes on this subject (antea, vol. xlvii, p . 406; vol. xlix, p . 153), I have come across a similar case, also with a male Blackbird (Turdus merula). The bird was ringed at Burgess Hill, Sussex, on 13th Decembe...

The Food of Nestling Purple Herons in Holland

01 December 1956 Comments Main paper IN late June 1956 we visited two colonies of Purple Herons (Ardea purpurea) in Holland in order to observe feeding and other behaviour for comparison with our studies in England of the Common Heron (A. cinerea). The colonies visited were at the Naardermee...

Obituary: A. W. P. Robertson (1908-1956)

01 December 1956 Comments Obituaries COMMANDER Alexander William Parrish Robertson, R . N . (Retd)., died on 13th June, 1956. Born a t Harlow, Essex, in August 1908 and educated at Harrow, he entered the Royal Navy in 1926 and served in China, the Mediterranean and Australia, followed by ser...

Photographic Studies of Some Less Familiar Birds: LXXVI. Osprey

01 December 1956 Comments Main paper (Plates 65-72) LIKE a number of the birds of prey, the Osprey (Pandion haliaetus) is a widespread species and h a s a breeding-range which extends from Alaska in the north-west to Australia in the south-east. It is, however, mainly a bird of the northern ...

Movements of House Sparrows

01 December 1956 Comments Main paper T H E migration of birds--the routes they take, the means by which they orient themselves and reach their destination--is at present receiving' considerable attention. The House Sparrow (Passer domesticus) is generally considered to be a sedentary bird an...

Notes

01 April 1943 Comments Notes MARTINSON of Foresters Lodge, Wolsingham, in the Wear valley, rcports that from January ioth to 28th, 1943, he had under Observation five Two-barred Crossbills (Loxia l. bifasciala). Flocks of the Common Crossbill (Loxia c. curvirostra) have been present...

Bird Notes from Lincolnshire, 1934-1942

01 April 1943 Comments Main paper THE following records from Lincolnshire over the past nine years it is hoped may provide some interest in that as the period concerned is of some length, some idea of the frequency of the occurrences of some of the species mentioned may be furnished. Ther...

Report of the Bird-Ringing Committee

01 April 1943 Comments Main paper THIS is the sixth report* issued on behalf of the Bird-Ringing Committee of the British Trust for Ornithology, continuing the earlier sequence of reports by H. F. Witherby published from 1910 onwards under the title " The British Birds Marking Scheme." Ac...

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Letters

Reviews

Notes

The Food of Nestling Purple Herons in Holland

Obituary: A. W. P. Robertson (1908-1956)

Photographic Studies of Some Less Familiar Birds: LXXVI. Osprey

Movements of House Sparrows

Notes

Bird Notes from Lincolnshire, 1934-1942

Report of the Bird-Ringing Committee

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