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Recent reports and News

01 April 1959 Comments News and comment The items here are largely unchecked reports, and must not be regarded as authenticated records. They are selected, on the present writers' judgment alone, from sources generally found to be reliable. Observers' names are usually omitted for reasons of sp...

Letters

01 April 1959 Comments Letters CROSSBILLS AT FAIR ISLE, 1956 SIRS,--May I point out some inaccuracies in the data concerning Crossbills (Loxia curvirostra) at Fair Isle in 1956, as given by Mr. F. R. Smith in his interesting paper "The Crossbillinvasion of 1956 and the subsequent breed...

Reviews

01 April 1959 Comments Reviews By LILLI KOENIG. Translated from the German by MARJORIE LATZKE. W i t h a foreword by KONRAD LORENZ. (Metheum, London, 1958). 159 p a g e s ; 24 photographs and many line drawings. 18s. T H E AUTHOR of this delightful book combines a scientific attitude ...

Notes

01 April 1959 Comments Notes Miss Jennifer Bak and I were on board' the Marine Biological Association's ship " S a r s i a " off Plymouth, Devon, near the Eddystone lighthouse, and saw a large migratory movement of b i r d s : in 4J hours' observation we counted some 1,600, mostly sm...

Photographic studies of some Less Familiar birds: XCVI. Ivory Gull

01 April 1959 Comments Main paper T H E IVORY GULL (Pagophila eburnea) is probably the most consistently northerly bird in the world as it nests only above the 70th parallel (chiefly between 75° and 85°N.) and remains, for the most part, at the edge of the pack ice in winter. Most colon...

Note on the display, Nesting and Moult of the Mute Swan

01 April 1959 Comments Main paper of Mute Swans (Cygnus olor) at stations in and around the T a y estuary, in east Scotland. T h e cycle of changes found during this period suggested complex movements of age-groups, and a study of their behaviour revealed some matters of interest relating...

The breeding Biology of the Ivory Gull in Spitsbergen

01 April 1959 Comments Main paper IN THE SUMMER of 1958 R. E. Hitchcock, J. L. Cutbill and ourselves spent just over three weeks at a colony of Ivory Gulls (Pagophila eburnea) in the Spitsbergen area. As the ice conditions were abnormally bad, our arrival at the colony was delayed until 1...

Seasonal fluctuations in the song of the Sky-Lark

01 February 1947 Comments Main paper ALTHOUGH a great deal has been written on the subject of bird song, relatively little is known about seasonal and daily fluctuations in song output. Alexander's [i, 2] work accounts for a very large number of species and gives the dates between which bir...

Letters

01 February 1947 Comments Letters SIRS,--With reference to Colonel Ryves's note (antea, Vol. xxxix, p. 375} oa a clutch of two eggs only, of the Blackbird (Turdus Â»Â». merula), I wish to point out that this number of eggs for a full clutch is not extremely abnormal. I cannot but thin...

Reviews

01 February 1947 Comments Reviews South-Eastern Bird Report, being an Account of Bird-Life in Kent, Surrey and Sussex during 1944. Edited by Ralph Whitlock. Ditto (including Hampshire) for 1945. THE 1944 South-Eastern Report, delayed by printing difficulties, was not available when our no...

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Recent reports and News

Letters

Reviews

Notes

Photographic studies of some Less Familiar birds: XCVI. Ivory Gull

Note on the display, Nesting and Moult of the Mute Swan

The breeding Biology of the Ivory Gull in Spitsbergen

Seasonal fluctuations in the song of the Sky-Lark

Letters

Reviews

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