Letters

01 March 2001 Comments Letters I was not terribly reassured by any of the comments of Mark Avery (Brit Birds 93: 500) in reply to my criticism of the pilot Ruddy Duck Oxyura jamaicensis cull and the rationale behind it (93: 394-396). Rather disturbingly, the RSPB's Director of Conse...
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Letters

01 October 2000 Comments Letters The RSPB agrees with Bernard Zonfrillo (Brit. Birds 93: 394-396) that the world is not ideal, but believes that some of his other comments are misplaced. Globally, introductions are a major cause of biodiversity loss (Vitousek et al. 1997) and pose a s...
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Letters

01 July 1978 Comments Letters Diving methods of Great Northern and Black-throated Divers On inland waters, I have noticed that Great Northern Divers Gavia immer always slither under slowly when diving, whereas Black-throated G. arctica jump upwards slightly before they dive...
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Letters

01 August 1977 Comments Letters Melanistic Grey Heron Bryan L. Sage (in litt.) has confirmed that, when making his recent comment (Brit. Birds 70: 76), he had overlooked my record of a melanistic Grey Heron Ardea cinerea at Little Tring Reservoir, Tring, Hertfordshire, on 29th S...
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Letters

01 September 1934 Comments Letters SIRS,--With reference to the extremely interesting article by Lieut.Col. and Mrs. B. H . Ryves on the breeding-habits of the Corn-Bunting as observed in north Cornwall (Vol. X X V I I I . , pp. 2-26) and Mr. John Walpole-Bond's detailed study of the Susse...
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