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Article
Carl Mitchell, Auteur ; Larry R. Griffin, Auteur ; Edward Burrell, Auteur ; Geoff M. Hilton, AuteurDans Wildfowl (73 2023)Numbers of breeding Common Scoter Melanitta nigra have declined in Britain and Ireland since the mid-1990s. To investigate little-known aspects of their annual cycle, nine nesting females at four of the main breeding sites in Scotland (in Invern[...]
Article
Michael J. Thornton, Auteur ; Carl Mitchell, Auteur ; Larry R Griffin, Auteur ; Robert A. Briers, Auteur ; Brian Minshull, Auteur ; Angus Maciver, Auteur ; Patrick J. C. White, AuteurCapsule Our multi-scale habitat selection and spatial analysis of a threatened population of Taiga Bean Geese Anser fabalis highlights the importance of monitoring and review programmes to determine whether species conservation measures are bein[...]
Article
Kevin A. Wood, Auteur ; Julia L. Newth, Auteur ; Kane Brides, Auteur ; Mike Burdekin, Auteur ; Anne L. Harrison, Auteur ; Steve Heaven, Auteur ; Charlie Kitchin, Auteur ; Leigh Marshall, Auteur ; Carl Mitchell, Auteur ; Jessica Ponting, Auteur ; Dafila K. Scott, Auteur ; Jon Smith, Auteur ; Wim Tijsen, Auteur ; Geoff M. Hilton, Auteur ; Eileen C. Rees, AuteurThe north-west European population of Bewick’s Swan Cygnus columbianus bewickii declined by 38% between 1995 and 2010 and is listed as ‘Endangered’ on the European Red List of birds. Here, we combined information on food resources within the lan[...]
Article
Carl Mitchell, Auteur ; Larry Griffin, Auteur ; Angus Maciver, Auteur ; Brian Minshull, Auteur ; Neville Makan, AuteurCapsule: Taiga Bean Geese Anser fabalis fabalis wintering near Falkirk, Scotland staged in Denmark, Norway and Sweden and summered in central Sweden.Aims: To determine the migration routes, timing of movements, breeding area and home ranges of T[...]
Article
Carl Mitchell, Auteur ; Peter Cranswick, Auteur ; Sergei Kharitonov, Auteur ; Daniel Mitev, Auteur ; John L. Quinn, Auteur ; Sonia Rozenfeld, Auteur ; Bob Swann, Auteur ; Didier Vangeluwe, AuteurDans Wildfowl (65 2015)Biometrics were taken from 242 Red-breasted Geese Bra; Ita ruficollis caught in summer on the Taimyr, Yamal and Gydan Peninsulas, arctic Russia in 1996 and 2007-2014, and from 94 birds during four catches on the wintering grounds in Bulgaria in [...]
Article
Carl Mitchell, Auteur ; Larry Griffin, Auteur ; Mark Trinder, Auteur ; Julia Newth, Auteur ; Christine Urquhart, AuteurCapsule Summering Greylag Geese Anser anser are increasing in number and expanding their range in Scotland. Aims During the summers of 2008 and 2009, extensive surveys of Greylag Geese in Scotland were undertaken to update the current distributi[...]
Article
Carl Mitchell, Auteur ; Anthony D. Fox, Auteur ; John Harradine, Auteur ; I. B. Clausager, AuteurCapsule Inferences are drawn on the basis of first-winter young:adult ratios. Aim To obtain the most error- and bias-free index of annual reproductive success for the species based on existing data. Methods We compared age and sex ratios amongst[...]
Article
Carl Mitchell, Auteur ; Richard Hearn, Auteur ; David Stroud, AuteurTwo breeding populations of Grey lag Goose Anser anser are currently recognised in the UK: i) the northwest Scotland (or native) population, which is the remnant of the population that once occurred more widely across Britain; and ii) the re-est[...]
Article
Anthony D. Fox, Auteur ; Johnny Kahlert, Auteur ; Alyn J. Walsh, Auteur ; David A. Stroud, Auteur ; Carl Mitchell, Auteur ; Jens N. Kristiansen, Auteur ; Ebbe Bogebjerg Hansen, AuteurWe used measurement of wing feather length as an index of moult stage to assess body mass changes amongst samples of geese caught from three different wild populations during the period of regrowth of flight feathers. Amongst male and female Gre[...]
Article
Potential factors influencing increasing numbers of Canada Geese Branta canadensis in west Greenland
Anthony D. Fox, Auteur ; Carl Mitchell, Auteur ; Mitch D. Weegman, Auteur ; Larry R. Griffin, Auteur ; Huw Thomas, Auteur ; David A. Stroud, Auteur ; Ian S. Francis, AuteurDans Wildfowl (61 2011)This paper reviews the increase in abundance of Canada Geese Branta canadensis, particularly those of the subspecies interior, in west Greenland over the last 20 years. Potential reasons for the increase, such as displacement from traditional br[...]
Article
Mark Trinder, Auteur ; Carl Mitchell, Auteur ; Bob Swann, Auteur ; Christine Urquhart, AuteurDans Wildfowl (60 2010)During 2003-2007, the Icelandic Greylag Goose Anser anser population increased from c. 73,000 to c. 100,000 individuals (reversing a decline in numbers recorded during the 1990s), the wintering distribution shifted northwards (c. 60% to Orkney) [...]
