Main articles

Results from a 47-year study of Tengmalm’s Owls in western Finland show that abundance of their main prey (Microtus and Myodes voles), and the three-year, high-amplitude fluctuations in vole populations, is fundamentally important in regulating the owl populations…

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The field separation of the Spanish Imperial Eagle from the formerly conspecific Eastern Imperial Eagle is reviewed…

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The breeding population of Peregrine Falcons on the Atlantic coasts of north and west Cornwall appears to be declining dramatically…

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The migrations of Woodcocks Scolopax rusticola visiting Britain & Ireland in winter are described using ringing data and information from satellite tracking…

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This article describes the breeding Curlews of southern England, an area which supports an estimated 500 pairs of predominantly lowland-breeding birds…

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A ‘Masked Wagtail’ at Camrose, Pembrokeshire, from 29th November to 26th December 2016 becomes as the first record of this taxon for Britain…

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The potential for confusion between dark-headed examples of ‘Grey-headed Wagtail’ Motacilla flava thunbergi and ‘Black-headed Wagtail’ M. f. feldegg is highlighted by a well-photographed bird on Cabrera…

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Records of White-billed Diver in the UK have increased since the 1990s. Most of this increase has occurred in Scotland…

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Two apparent records of Downy Woodpecker in Britain are described. These records have not been formally reassessed for more than a century…

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The behaviour of a pair of Common Kestrels using a nestbox on a farm in Hampshire was monitored throughout three breeding seasons, 2017–19…

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