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Documents disponibles écrits par cet auteur (14)
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Article
Colin Bradshaw, AuteurBlyth's Reed Warbler Acrocephalus dumetorum remains one of the most difficult identification challenges facing field birders in Britain. This paper describes a case where identification was still not proven, despite the bird being trapped and me[...]
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Colin Bradshaw, Auteur
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Colin Bradshaw, Auteur
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Colin Bradshaw, Auteur
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Paul Harvey, Auteur ; Colin Bradshaw, Auteur
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Adam Rowlands, Auteur ; Brian J. Small, Auteur ; Colin Bradshaw, AuteurA claim of Wilson's Snipe Gallinago delicata from St Mary's, Isles of Scilly, in October 1998 led to one of BBRC's most detailed investigations into the identification of an individual bird, and this paper summarises that process. Common G. gall[...]
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Colin Bradshaw, AuteurSome of the more interesting records submitted to BBRC have been featured in British Birds in the series 'From the Rarities Committee's Files'. Those published so far have tended to deal with identification criteria for difficult species. Occasi[...]
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Colin Bradshaw, AuteurRare seabirds are often extremely hard to identify, and a significant part of the problem is that, when observed from land, circumstances are typically very difficult. In many cases, one or more of the following drawbacks applies: the weather co[...]
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Alan Dean, Auteur ; Colin Bradshaw, Auteur ; John Martin, Auteur ; Andy Stoddart, Auteur ; Grahame Walbridge, AuteurThe first British record of Common Chiffchaff Phyllosco pus collybita of the Siberian race tristis was on Sule Skerry, Orkney, in September 1902. Reports of 'Siberian Chiffchaff' have become regular in more recent years, both as a migrant and as[...]
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Colin Bradshaw, Auteur ; John Wright, Auteur
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Colin Bradshaw, Auteur ; Peter G. Lansdown, Auteur
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Colin Bradshaw, Auteur
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D. I. M. Wallace, Auteur ; Colin Bradshaw, Auteur ; M. J. Rogers, AuteurA review of records of British rarities in the eight years from 1950 to 1957 has been carried out by a subcommittee of the British Birds Rarities Committee (BBRC). In total, 126 records of 67 of the rarest species and species pairs were reassess[...]
