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Article
This paper presents the results of a 29-year study (1983-2011) of the biology and population dynamics of Razorbills Alca torda breeding on Græsholmen in the central Baltic Sea. During the study years, the breed- ing population increased from c. [...]
Article
Svend-Erik Garbus, Auteur ; Jens Peter Christensen, Auteur ; Peter Lyngs, Auteur ; Igor Eulaers, Auteur ; Anders Mosbech, Auteur ; Rune Dietz, Auteur ; Pelle Garbus, Auteur ; Rene Huusmann, Auteur ; Christian Sonne, AuteurIn this study, we analyzed biochemical parameters and the body masses of 14 incubating Common Eiders (Somateria mollissima) breeding on Christiansø in the Baltic Sea from April to May 2015. The eiders were examined and sampled on days 4 and 24, [...]
Article
Svend-Erik Garbus, Auteur ; Peter Lyngs, Auteur ; Anders Popp Thyme, Auteur ; Jens Peter Christensen, Auteur ; Christian Sonne, AuteurHere we present the results of candling 258 eggs from 50 nests of Common Eiders Somateria mollissima in a colony in the central Baltic. Of these, 223 (86%) had a developing foetus. Among the 35 (14%) failed eggs, 15 were unfertilized and 20 cont[...]
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Svend-Erik Garbus, Auteur ; Peter Lyngs, Auteur ; Mathias Garbus, Auteur ; Pelle Garbus, Auteur ; Igor Eulaers, Auteur ; Anders Mosbech, Auteur ; Rune Dietz, Auteur ; H. Grant Gilchrist, Auteur ; Rene Huusmann, Auteur ; Jens Peter Christensen, Auteur ; Christian Sonne, AuteurHere we present the recording of body mass change and weight loss during incubation in a Common Eider Somateria mollissima colony at Christiansø in the Central Baltic (55°19’N 15°11’E). The study was conducted during April and May 2015 and a tot[...]
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Peter Lyngs, Auteur ; Jan Durinck, Auteur
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Article
More than 280 000 birds have been ringed in Greenland since 1926, resulting in 15 498 recoveries of 43 species. Additionally, 1947 birds of 45 species ringed abroad have been recovered in Greenland. Most of the recoveries are of species economic[...]
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Anthony D. Fox, Auteur ; Sverre Kobro, Auteur ; Aleksi Lehikoinen, Auteur ; Peter Lyngs, Auteur ; Risto A. Vaisanen, AuteurAutumn Northern Bullfinch abundance at bird observatories around the Baltic Sea confirmed periodic irruptive behaviour outside of its normal wintering range, but age-ratio data suggested dispersal was not linked to reproductive success. Rowan be[...]
Article
Thomas Bregnballe, Auteur ; Peter Lyngs, AuteurBased on more than 6000 counts, this paper describes the development of the population of breeding Herring Gulls in Denmark since the 1920s. As part of this review, all published as well as a large number of unpublished data concerning breeding [...]
Article
A survey of the Danish population of Eider Somateria mollissima in 2000-2002 showed that numbers remained virtually unchanged compared with a similar survey during 1988-1993, at about 25 000 nesting females.
