| Titre : | Vogelwarte 43(2) - MAY 2005 |
| Type de document : | Bulletin |
| Paru le : | 00/00/0000 |
Dépouillements
Article
Elle Ortwin, Auteur
Article
Juergen Haffer, Auteur
Article
Hauke Ballasus, Auteur
This work investigates habitat selection and preferences of White-fronted- and Bean Geese wintering at the Lower Rhine area of North-Rhine-Westphalia (district Kleve), Germany. The study was made against the background of historical changes in t[...]
Article
Peter Berthold, Auteur ;
Wolfgang Fiedler, Auteur
At the Mettnau Station in southern Germany trapping of birds of 33 species during 1972-2003 yielded 181,186 first traps, the present evaluation of which has produced 4 main results: (1) the total numbers trapped decreased significantly during th[...]
Article
Article
Irene Wuerdinger, Auteur ;
Wolfgang Fiedler, Auteur
Article
Article
Michael Stoltz, Auteur
After 10 resp. 12 years of being caged in an outdoor aviary exposed to central European environmental conditions, 3 Honey Buzzards' seasonal behaviour was studied. The Honey Buzzards had no previous migratory flight experience. All measurements [...]
Article
Manfred Lieser, Auteur ;
Marek Zakrzewski, Auteur
From 1996-1999, 15 ptarmigan (7 male, 8 female) were radio-tracked between early June and mid-August on Traill Island (northeastern Greenland), providing many data about spacing and social behaviour during the breeding and chick-rearing period. [...]
Article
Volker Dierschke, Auteur
Compared to descriptions from the 19th century and data from the first half of the 20th century, Red-spotted Bluethroats have considerably decreased as migrants on the island of Helgoland (southeastern North Sea). At least in the last decades th[...]
