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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...

Simultaneous Watch for migrant Swifts, May 11th, 1947

01 May 1948 Comments Main paper IN the spring of 1947 the British Trust for Ornithology invited as many as possible of its members and others interested to undertake a simultaneous watch of the movements of Swifts (Apus a. apus) on a pre-selected day--May n t h , 1947.Five similar watch...

Notes

01 May 1948 Comments Notes ON December 18th, 1946, I saw a Nutcracker (Nucifraga caryocaiactes subsp.?) about two miles west of Turners Hill, Sussex. It flew across the road and settled in a tree about 35 yards away in full view. I was able to watch the bird for about three minute...

The index of Heron population, 1947

01 May 1948 Comments Main paper THE number of heronries on which reports for 1947 were received at the Edward Grey Institute was 158, or 13 less than in the previous year. Of these 122 were in England, 6 in Wales, 11 in Scotland and 19 in Ireland. We are indebted to 63 informants, of wh...

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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

Simultaneous Watch for migrant Swifts, May 11th, 1947

Notes

The index of Heron population, 1947

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