| Titre : | Dansk Ornitologisk Forenings Tidsskrift 108(3) - 2014 |
| Type de document : | Bulletin |
| Paru le : | 00/00/0000 |
Dépouillements
Article
Thomas Bregnballe, Auteur ;
Peter Lyngs, Auteur
Based 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 As part of this review, all published as well as a large number of unpublished data concerning breeding [...]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
The present survey was made as a supplement to other surveys which show a declining ratio of females in the Baltic flyway population of Common Eiders (see Lehikoinen etal. 2008, Ekroos etal. 2012). During 27 February -8 June 2013 and 10 February[...]
