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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...

Reviews

01 April 1956 Comments Reviews with field assistance by GEORGE EDWARDS. (Faber and Faber, London, 1955). 128 p a g e s ; 32 plates. 18s. Birds Fighting is one of the first bird books to be illustrated mainly with electronic flash photographs. A number of them have already appeared in t...

Notes

01 April 1956 Comments Notes Purple Heron in Surrey.--On 18th September 1955 I disturbed a juvenile Purple Heron (Ardea purpurea) in a patch of rather close-growing reeds at the south end of Frensham Little Pond, six miles N . W . of Haslemere, Surrey. First seen indistinctly in the ...

Special Review

01 April 1956 Comments Reviews and 1955). 162 pages and 24 p l a t e s ; 235 pages and 24 plates. Each 10s. T H E activities of the W r ildfowl Trust have expanded enormously since its inception in 1946. T h e contents of the First Annual Report, reviewed in this journal in 1948, consi...

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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

Reviews

Notes

Special Review

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