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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 Not only has the specific name kuhlii been replaced by diomedea, in accordance with the rale of priorit...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 ...

Field-notes on some Asian Leaf-Warblers-I

01 July 1955 Comments Main paper ONLY three species of leaf-warblers or willow-warblers* (Phylloscopus) are common and regular visitors to Britain, but twelve forms, belonging to nine different species, have been recorded at one time or another. These, however, represent less than half t...

Do English Woodpigeons Migrate?

01 July 1955 Comments Main paper T H E object of this short paper is to draw attention to a curious problem in the hope that others will help in solving it. The observations here described, made independently by Lack round Oxford and by Ridpath in Kent and Sussex, cannot be satisfactoril...

Photographic studies of some less Familiar birds: LXV. Marmora's Warbler

01 July 1955 Comments Main paper (Plates 41-44) THOUGH the Dartford Warbler (Sylvia undata) is to be found on the islands of the western Mediterranean, it is there much outnumbered by its close relative, Marmora's Warbler (S. sarda), which has a very limited range from Tunis, Algeria, an...

Notes on the post-Juvenile Moult and first-winter plumage in the Pheasant

01 July 1955 Comments Main paper T H I S note has been prompted by a few inaccuracies which have persisted in The Handbook of British Birds on the post-juvenile moult and first-winter plumage of the Pheasant (Phasianus colchicus). Since its first edition in 1941, another six impressions ...

The passage of Black Terns Through Britain in Autumn 1954

01 July 1955 Comments Main paper (Fair Isle Bird Observatory) T H E unusual passage of Black Terns (Chlidonias niger) through the British Isles during the spring of 1954 has been discussed by Dickens (1955)- This was followed by an equally abnormal passage during the autumn. There appear...

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