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Wigeon X Chiloe Wigeon hybrid resembling American Wigeon

01 April 1968 Comments Main paper It has been established that some interspecific hybrids among ducks and geese (Anatidae) strongly resemble one parent or even another species altogether, thus causing problems in field-identification. An extreme case in Britain is the hybrid Pochard Ay...

Studies of less familiar birds: 147. Cory's Shearwater

01 April 1968 Comments Main paper Various changes have been made in the scientific nomenclature of Cory's Shearwater since the publication of The Handbook of British Birds (1938-41). Not only has the specific name kuhlii been replaced by diomedea, in accordance with the rale of priorit...

Little Swift in Co. Cork

01 April 1968 Comments Main paper On the evening of 12th June 1967, on Cape Clear Island, Co. Cork, I was sitting on top of a steep ridge overlooking Cummer, a narrow col situated between the north and south harbours. The soft evening light was directly behind me and it was perfectly c...

Obituary: William Maitland Congreve, MC(1883-1967)

01 April 1968 Comments Main paper Major W. M. Congreve died in his sleep at his home in Bradford-onAvon, Wiltshire, on 31 st December 1967, All who met 'Mait' Congreve in later life will recall with admiration his determined efforts to overcome his handicap of an advancing and cripplin...

Influx of Great Shearwaters in autumn 1965

01 April 1968 Comments Main paper From August to October 1965 unprecedented concentrations of Great Shearwaters Puffinus gravis, with smaller numbers of Cory's Shearwaters Calonectris diomedea, were recorded off the western and northern coasts of Britain and Ireland. There was also an ...

Song-posts of the Blackbird in a Built-up area

01 January 1957 Comments Main paper IN the paper "Buildings as song-posts" (antea, vol. xlviii, pp. 211215) I described and tabulated the perches used by nine species of birds in füll song, that were seen along the two-mile route I cycled daily--apart from week-ends and holidays--between m...

Photographic studies of some less familiar birds: LXXVII. Red-necked and Black-necked Grebes

01 January 1957 Comments Main paper (Plates 1-8) THERE are some twenty species of grebes in the world, but the five that occur in Britain a r e the only ones in the Palaearctic. Of these, the Great Crested (Podiceps cristatus) and the Little (P. ruficollis) are comparable in their distribut...

D.D.T. poisoning of birds

01 January 1957 Comments Main paper DURING the past 3 years an average of two visits weekly have been made to a small experimental agricultural nursery of 6J acres in Ahmadi, Kuwait, Persian Gulf. A brief outline of the methods of cultivation and of the labour employed in this nursery might...

The Chaffinch migration in North Devon

01 January 1957 Comments Main paper Dr. Bannerman. Dr. D. A. Bannerman, author of The Birds of Tropical West Africa and, with G. E. Lodge, of a new The Birds of the British Isles, now in progress, reached the age of seventy on 27A November 1956, and the present paper is offered as a birthd'...

Notes on Tufted Duck in St. James's Park, London

01 January 1957 Comments Main paper SINCE 1925, unpinioned Tufted Duck (Aythya fiiligula) have bred in St. J a m e s ' s P a r k which has been their main breeding-area in Inner London for many years (Cramp and Teagle, 1952). This paper Covers 1953-55 inclusive when the writer visited the P...

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