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Article
Ron Summers, Auteur ; Bob Swann, Auteur
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
Ron W. Summers, Auteur ; Snaebjorn Palsson, Auteur ; Colin Corse, Auteur ; Brian Etheridge, Auteur ; Simon Foster, Auteur ; Bob Swann, AuteurCapsule Sex ratios were determined for 11 wader species at the northern end of the East Atlantic flyway in winter. The ratio was even for six species, there were more males for four species, and more females for one species.Aims To describe the [...]
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) [...]
Article
Gunnar Thor Hallgrimsson, Auteur ; Ron W. Summers, Auteur ; Brian Etheridge, Auteur ; Bob Swann, AuteurIceland has a large resident population of Purple Sandpipers Calidris maritima, but is also believed to be a wintering area for other populations and is a stopover site for migrants. To determine the wintering areas of those that prepare for wes[...]
