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Letters

01 April 1951 Comments Letters SIRS,--Mr. K. E. L. Simmons's letter (antea, p. 40) on this subject draws attention to reactions in trapped birds intermediate between remaining immobile on the open hand and the extreme, trance-like "death feigning". A further case may be of interest. On...

Reviews

01 April 1951 Comments Reviews Notes on the Birds of Warwickshire by C. A. Norris. (Cornish Brothers Ltd., Birmingham, 1947). 8s. 6d. THE only previous account of the birds of this county was that published by R. F. Tomes in the Victoria History of Warwickshire in 1904. The present lit...

Notes

01 April 1951 Comments Notes T H E following notes, made on a colony of Rooks (Corvus frugilegus) in a Cambridge street during March, 1949, have been prompted by Mr. C. M. Ogilvie's article on this subject (antea, pp. 1-5). This rookery, comprising only five pairs, was a new one, pr...

The aerial dawn chorus of the Swallow

01 April 1951 Comments Main paper (i) Over a number of years one of us (A. V. B.), has ringed migrants at Jupille, near Liege, between Aug. 20th and Sep. 15th, always arriving at the trap before dawn. W h e n the weather is fine, with a cloudless sky and little or no wind, a song-chorus o...

The use of extruded plastic for colour marking

01 April 1951 Comments Main paper F O R an investigation of the dispersal of juvenile gulls an economical method of mass colour marking was needed. The standard celluloid ring proved expensive, limited in size and difficult to attach. Enquiries were made from manufacturers as to the possi...

The Index of Heron population, 1950

01 April 1951 Comments Main paper (Edward Grey Institute, Department of Zoological Field Studies, Oxford). T H E number of heronries on which reports for 1950 were received at the Edward Grey Institute was 207, or 45 more than in the previous year. Of these 150 were in England, 17 each in...

Fair Isle Bird Observatory. Notes on selected species, Autumn, 1950

01 April 1951 Comments Main paper KENNETH WILLIAMSON (Director). T H I S contribution follows similar lines to the one published (antea, vol. xliii, p p . 48-52), dealing with the 1949 season: the aim is not to give a complete record of the appearance of scarce migrants, but to extract fr...

The behaviour of some birds on the British List in their winter quarters or on migration in Southern Rhodesia

01 April 1951 Comments Main paper T H E S E notes are intended to extend information available in The Handbook of British Birds. Notes on the warblers and Luscinia luscinia mostly refer to a tobacco farm (1,000 acres, 4,500 feet a.s.l.) 60 miles north-west of Salisbury, in Mashonaland. Th...

Reviews

01 July 1939 Comments Reviews Transactions of the Hertfordshire Natural History Society and Field Club, Vol. X X I , Part I. T H I S contains a very well deserved tribute to Mr. Charles Oldham, signed by a number of naturalist friends and addressed to him on the occasion of his sevent...

Notes

01 July 1939 Comments Notes I THINK it will be of interest to record a case of bigamy in Montagu's Harrier (Circus pygargus), which I had under observation in England during the summer of 1938. It is well known that this species has a tendency to nest in small colonies, but I do no...

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Letters

Reviews

Notes

The aerial dawn chorus of the Swallow

The use of extruded plastic for colour marking

The Index of Heron population, 1950

Fair Isle Bird Observatory. Notes on selected species, Autumn, 1950

The behaviour of some birds on the British List in their winter quarters or on migration in Southern Rhodesia

Reviews

Notes

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