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Separating Radde's and Dusky Warblers

01 September 1994 Comments Main paper !n the last few years, there seems to have been a general change of view on the ease of separation of Radde's Warbler Phylloscopus schwarzi and Dusky Warbler P. fuscatus. The first easily accessible text for field separation of these two species was th... Read More

King Eiders in Britain and Ireland in 1958-90: occurrences and ageing

01 September 1994 Comments Main paper The King Eider Somateria spectabilis is a widespread breeder across most of the High Arctic coastline and islands of the Holarctic, but is largely absent from Iceland, southern Greenland and arctic Scandinavia. The population from western Siberia and a... Read More

Breeding biology of Buzzards at Sedbergh during 1937-67

01 September 1971 Comments Main paper Since 1937, observations on Buzzards Buteo buteo breeding within ten miles of Sedbergh, Yorkshire, have been recorded by the Sedgwick Society of Sedbergh School. The present paper shows the results of an analysis of these records, supplemented by my own o... Read More

North American waterfowl in Europe

01 September 1971 Comments Main paper The natural occurrence of North American birds in Europe is a wellestablished fact substantiated by recoveries of ringed birds. The transatlantic crossings of waders and passerines have been excellently treated by Nisbet (1959, 1963) and, more recently, b... Read More