| Titre : | Vogelwarte 41(3) - September, 2002 |
| Type de document : | Bulletin |
| Paru le : | 00/00/0000 |
Dépouillements
Article
Thomas Schaefer, Auteur
Mice are often assumed to prey on bird nests. However, there are only few actual observations of mice taking eggs or young birds from nests, or they were obtained with artificial nests. Bures (1997) showed in videotaped experiments that unguarde[...]
Article
Barbara Engler, Auteur ;
Hans-Guenther Bauer, Auteur
The House sparrow, once the "Jack of all trades" in our avifauna, shows drastic declines all over Germany, which led to its categorization in the 'near-threatened' category of the recent German Red List (2002) and to its announcement as 'Bird of[...]
Article
Volker Dierschke, Auteur
Out of 84,827 landbirds (at most passerines) ringed on the small offshore island Helgoland (SE North Sea) during stopovers on spring and autumn migration from 1989 to 2000, only seven were recaptured in a later migration season (1 Sparrowhawk Ac[...]
Article
Ana Bermejo, Auteur ;
Javier de la Puente, Auteur
The Sedge Warbler (Acrocephalus schoenobaenus) is a long-distance Palearctic migrant, whose western European population reportedly makes a non-stop flight from England or northern France across the Mediterranean and the Sahara desert. We found, [...]
Article
Martin Buchmann, Auteur
On June 24th 2001 a marked female was caught during a feeding attempt of a depredated brood at 8:25. On the same day, at 15:45 the same female was observed nest-building in a territory of another male at 3,8 km distance. The female must have cro[...]
Article
Kathrin Hueppop, Auteur ;
Ommo Hueppop, Auteur
Recoveries from 90 years of bird ringing at Helgoland offer an unique material for analyses of the causes of death of birds in Europe throughout the 20th century. Despite uncertainties in the interpretation, great regional and/or temporal differ[...]
