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Recent reports - May

01 August 1973 Comments News and comment These are largely unchecked reports, not authenticated records May was a month of unsettled weather, generally warm in most parts of Britain but with above average rainfall in some places. The presence during the first week of an area of high pressure ...

Notes

01 August 1973 Comments Notes Death of Great Crested Grebe in unusual circumstances On 26th June 1971, at Rostherne Mere National Nature Reserve, Cheshire, I observed a pair of Great Crested Grebes Podiceps cristatus in what appeared to be normal courtship display. One part...

Predation of migrant birds by gulls

01 August 1973 Comments Main paper Gulls Larus have a very diverse feeding ecology, but vertebrates form a significant part of the diet of some species (Tinbergen 1953). They are well known for their depredations on the eggs and young of colonial seabirds; they also attack and kill inju...

Report on rare birds in Great Britain in 1972

01 August 1973 Comments Main paper This is the fifteenth annual report of the Rarities Committee. The composition of the committee is now D. I. M. Wallace (chairman), F. R. Smith (honorary secretary), D. G. Bell, A. R. M. Blake, P. E. Davis, R. H. Dennis, P.J. Grant, R.J.Johns, R. A. Ri...

Current developments in the work of the Rarities Committee

01 August 1973 Comments Main paper During 1972, and more particularly at its annual meeting in March 1973, the Rarities Committee has reviewed many points of policy and practice. Conscious of the criticism that it periodically attracts, it remains anxious to conduct its work as openly a...

Reviews

01 February 1961 Comments Reviews Vara Faglar i Norden (Our Birds in the North). Second edition edited by Kai Curry-LindaM (Swedish text). Bokforlaget Natur och Cultur, Stockholm, 1959 and i960. Volumes I and II, 1022 pages; coloured and black-and-white plates, and maps, (Four volumes: Sw...

Notes

01 February 1961 Comments Notes Ring-necked Duck in Co. Armagh.--A male Ring-necked Duck (Aythya collaris) stayed on the lake in the Public Park, Lurgan, Co. Armagh, from 20th March till 1st May i960 and was seen on many occasions by various observers. It then disappeared, but returned ...

Some photographic studies of the Nightjar

01 February 1961 Comments Main paper I N G E N E R A L W E TRY to publish photographs for their biological interest or because they illustrate points of identification, rather than for their aesthetic value. This aim is always borne in mind in the selection and presentation of the photograph...

An interpretation of variation in the dark-headed forms of the Yellow Wagtail

01 February 1961 Comments Main paper variation to be seen in the Yellow Wagtail (Motacilla flava). T h e chief mistake made by most investigators has been that of splitting the group into too many forms on the basis of too few specimens, the most flagrant example of this being in the monogra...

The " Lesser Scaup " problem

01 February 1961 Comments Main paper observations in Britain of ducks that were thought to be Lesser Scaups (Aythya affinis), a North American species not recorded in Europe. This note is based on a detailed examination of one of these --that first seen at Sutton Courtenay, Berkshire, in Dec...

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Recent reports - May

Notes

Predation of migrant birds by gulls

Report on rare birds in Great Britain in 1972

Current developments in the work of the Rarities Committee

Reviews

Notes

Some photographic studies of the Nightjar

An interpretation of variation in the dark-headed forms of the Yellow Wagtail

The " Lesser Scaup " problem

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