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British records of Mugimaki Flycatcher and Chinese Pond Heron have presented BOURC with particular issues regarding provenance. This paper sets out the circumstances surrounding each claim…

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An adult Chinese Pond Heron at Eccles-on-Sea, Norfolk, on 31st October 2004, and East Dean, Hampshire, on 13th November 2004 becomes the first British record…

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Ornithologists have visited Fair Isle for over 100 years and the Bird Observatory staff have systematically counted migrants on a daily basis for more than 60 years, producing a long-term dataset comprising over one million records of more than 400 species…

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Records of Phylloscopus warblers singing a mixture of Willow Warbler and Common Chiffchaff songs are not uncommon. Of 11 mixed singers found recently in the Cambridge area, all appeared to be Willow Warblers…

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Skomer Island, off the Pembrokeshire coast, has some of the finest seabird colonies in Britain, including the largest colony of Manx Shearwaters in the world, although most visitors come to see Puffins at what is the best site for this species in southern Britain…

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The Sandwich Tern is a familiar seabird yet little is known about its foraging ecology. This paper brings together the results from four years of boat-based visual tracking of Sandwich Terns from the UK’s largest breeding colonies, at Blakeney Point and Scolt Head…

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The decline of the Willow Tit in the UK has made it a conservation priority species. We present evidence that in some areas of the UK there has been an increase and colonisation over the past 25 years…

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The Common Buzzards from Fuerteventura, in the Canary Islands, are distinctive. This taxon often resembles Long-legged Buzzard but also shows some plumage traits consistent with Common Buzzard…

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A female ‘Dark-breasted Barn Owl’ was found breeding with a male of the nominate subspecies at a site in Cheshire & Wirral in May 2014…

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The Sacred Ibis is common and widespread in its native range, and thrives in landscapes modified by human activity. In recent decades, non-native populations have become established in several areas of Europe…

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