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Reviews

01 March 1961 Comments Reviews Atlas of European Birds. By K. H . Voous. N e l s o n , London, i960. 284 pages; 419 maps and 355 photographs. 70s. One of the post-war developments in ornithology has been the attention given to bird distribution. There has been a growing realisation of ...

Notes

01 March 1961 Comments Notes Beetles in the plumage of birds.--On 25 th May 1959 I picked up a freshly dead Swift (Apus apus) on the sloping concrete bank of Hilfield Park Reservoir, Hertfordshire. On examining the bird I discovered a single beetle of the species Haltka ohracearighti...

A survey of moulting Shelduck on Knechtsand

01 March 1961 Comments Main paper sand-banks which lies 8.1 nautical miles from the German mainland between Bremerhaven and Cuxhaven. It extends from 8Â°i8'E to 8Â°29'i5"E and from 5 3 V ' i 8 " N to 5 3Â°46'i5"N. Robins Balje is a natural boundary on the south-west side, while the ...

Warbler fluctuations in Oak Woodland in the Severn Valley

01 March 1961 Comments Main paper T w o P R E V I O U S P A P E R S of mine in British Birds (1935, 1950) gave population statistics for the Nightingale (Luscinia megarhynchos) and four species of warbler--Willow Warbler (Pbylloscopus trnchilus), Chiffchaff (PL collybitd), Garden Warbler ...

The contamination of birds with pollen and other substances

01 March 1961 Comments Main paper A s A RESULTof an appeal in a paper by Ash (195 9), further specimens of polleniferous contaminants, some containing other substances, were removed from the heads of migrant birds in i960. The most notable contribution was made by P.H.J, in the Camargue, ...

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...

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Reviews

Notes

A survey of moulting Shelduck on Knechtsand

Warbler fluctuations in Oak Woodland in the Severn Valley

The contamination of birds with pollen and other substances

Recent reports and News

Letters

Reviews

Notes

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

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