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Product reports

01 April 1993 Comments Main paper Items included in this feature have been submitted by the manufacturers or their agents. The reviews are the personal opinions of the reviewers; they are not the result of technical tests, but are assessments made after use in appropriate conditions (e...

From the Rarities Committee's files: Separation of South Polar Skua from Great Skua

01 April 1993 Comments Main paper Separation of South Polar Skua from Great Skua. Some of the claims of South Polar Skua Stercorarius maccormicki that have been submitted to the British Birds Rarities Committee contain certain misconceptions. These relate to both South Polar Skua and G...

Mystery photographs

01 April 1993 Comments Main paper When I first saw this photograph (plate 31, repeated here), it was at a distance, so all I could see was what looked like a silhouette of a raptor, which could be an Accipiter. It has pretty good wing shape for a large female Eurasian Sparrowhawk A. ni...

Do Mediterranean Shags occur in southwest England?

01 April 1993 Comments Main paper In recent years, there have been several reports from southwest England of juvenile Shags Phalacrocorax aristotelis resembling juveniles of the Mediterranean race desmarestii. This paper summarises the British reports to date and discusses the problems...

History of the Northern Pintail breeding in Britain and Ireland

01 April 1993 Comments Main paper The Northern Pintail Anas acuta is a sporadic breeding species throughout its range in Eurasia and North America, ft is often reported to breed irregularly, despite apparently catholic nesting requirements. Closer analysis of the species' breeding pref...

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...

Studies of less familiar birds 167: Golden Oriole

01 September 1971 Comments Main paper Plates 61-63 The 28 species of Old World orioles (Oriolidae) form a remarkably homogenous group of arboreal passerines of wide distribution over Africa, Eurasia and Australasia. Systematically they are placed between the drongos (Dicruridae) and the crows...

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...

Rook numbers in Nottinghamshire over 35 year

01 September 1971 Comments Main paper frugilegus in Nottinghamshire in 1962 and compares the figures with those from four other censuses in the previous 34 years. The first counts were made by A. Roebuck in 1928 (Roebuck 1933) and again in 1932. There was then a wartime census by A. I. H. Doc...

Studies of less familiar birds 129. Cetti's Warbler

01 September 1971 Comments Main paper C E T T I ' S W A R B L E R Cettia cetti, named after an 18th century Italian Jesuit zoologist (see Macleod 1954), is unique in various ways. Apart from being the sole species in a subgenus characterised by long, soft plumage and a very rounded tail with ...

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