| Titre : | Vogelwarte 41(2) - 2001 |
| Type de document : | Bulletin |
| Paru le : | 01/06/2001 |
Dépouillements
Article
Gernot Segelbacher, Auteur ;
Guenther Steinbrueck, Auteur
It is often difficult to obtain blood or tissue samples for population genetic studies of birds without disturbing the animals. We therefore developed a method for extracting DNA from small amounts of bird faeces, and describe the use of this me[...]
Article
Luca Salvati, Auteur
The typical habitat of the Eurasian Kestrel (Falco tinnunculus) is mainly rocky and farmland areas provided that a quantity of nests is available on quarries or rural buildings. Since Kestrels reach high density also in some European cities, urb[...]
Article
Volker Dierschke, Auteur ;
Fabian Bindrich, Auteur
During migration, many passerine birds cross the southeastern North Sea (German Bight), an only small ecological barrier (
Article
Stefan Braeger, Auteur
In the years 1995, 1998, 1999, and 2000, a total of 860 Reed Warblers (89% immatures of the same year) were mistnetted in the reedbeds of lake Lankersee, northern Germany, during the months July to September at the start of the southward migrati[...]
Article
Guenter Nowald, Auteur ;
Tanja Fleckstein, Auteur
As part of an international crane research project, we investigated food availability and diet of crane families in their breeding territories. In 1996 we determined the preferred feeding sites of six crane families by radio tracking. To analyze[...]
Article
Nicolantonio Agostini, Auteur ;
Charles Coleiro, Auteur ;
Ferdinando Corbi, Auteur ;
Giuseppe Di Lieto, Auteur ;
Fabio Pinos, Auteur ;
Michele Panuccio, Auteur
During the second half of September 2000, observations were made of the autumn migration of Marsh Harriers (Circus aeruginosus) in three locations in the central Mediterranean: the Circeo promontory (Central Italy), Malta, and Marettimo Island ([...]
Article
Juan F. Masello, Auteur ;
Gabriel A. Pagnossin, Auteur ;
Gaston E. Palleiro, Auteur ;
Petra Quillfeldt, Auteur
The observation of burrow-nesting birds is often difficult because the nest burrows prove to be too deep and too dark for direct observation. Also, many species abandon the brood nest after they are disturbed by the observer. To avoid this probl[...]
Article
Simone Verbarg, Auteur ;
Hans-Heiner Bergmann, Auteur ;
Wiltraud Englaender, Auteur
White fringes of 6th, 10th and 12th secondary flight feathers of shelducks were scanned and their proportions of the vane areas measured using ArcView GIS software. First year birds had broad conspicuous fringes on both all secondaries and prima[...]
