| Titre : | Vogelwarte 42(3) - Februar 2004 |
| Type de document : | Bulletin |
| Paru le : | 00/00/0000 |
Dépouillements
Article
Guenther Busche, Auteur ;
Hans-Juergen Raddatz, Auteur ;
Achim Kostrzewa, Auteur
Since the re-introduction of Eagle Owls in the early 1980's and the establishment of a breeding population since 1984 numbers of Goshawks were declining in northern Germany. During 15 years we monitored 43 breeding attempts in Eagle Owls and 180[...]
Article
Thomas W. P. Friedl, Auteur
This paper gives an overview of important aspects of breeding behaviour in the Red Bishop (Euplectes orix), a weaverbird with a wide distribution in Africa south of the Sahara. Territorial and courtship behaviour of males in nuptial plumage as w[...]
Article
Wolfgang Winkel, Auteur ;
Doris Winkel, Auteur
Drost (1936) categorized the breeding plumage of male Pied Flycatchers (Ficedula hypoleuca) into seven colour types with a variation which ranges continuously from dorsal completely black (type I) to fully brown or greyish brown (type VII). This[...]
Article
Holger Reyher, Auteur
In a study area in Southwestern Germany between 1989 and 2000 breeding biology and population density of field sparrows were studied. The field sparrow is regarded to be a common breeder in the study area and reaches its height in mixed orchard [...]
Article
Fares Khoury, Auteur
The physical state of Sylvia Warblers stopping over in a large plantation on the edge of the eastern desert of Jordan was studied during spring and autumn migration. Sylvia species caught in autumn had generally higher fat loads than in spring, [...]
