| Titre : | Ornithologischer Anzeiger 37(2) - May, 1998 |
| Type de document : | Bulletin |
| Paru le : | 00/00/0000 |
Dépouillements
Article
Manfred Kraus, Auteur ;
Wener Krauss, Auteur
There were 358 records (12%) of 3079 Mallards ringed in the winter months between 1 Jan 82 and 30 Dez 89.82% of the records occurred by hunting, overproportionately more males than females were shot. The mortality averaged 45%, the life expectat[...]
Article
In the National Park Bayerischer Wald, Germany, the reintroduction Ural Owl is supported by 58 nest boxes. Yearly controls gain an insight into breeding numbers of Ural Owl and closely related Tawny Owl. The analysis of prey remains found in the[...]
Article
Helmut Meyer, Auteur ;
Karl Heinz Gleixner, Auteur ;
Siegfried Rudroff, Auteur
In two spruce forest areas near Hof (North Bavaria) and Munich (distance 250 km), populations of Tengmalm's Owl were built up with the aid of nest boxes. The development of the populations was accompanied by trapping and ringing and later also b[...]
Article
Three flocks of Cormorants Phalacrocorax carbo were observed during autumn migration 1997 at Randecker Maar bird station (Swabian Alb, SW-Germany). The problems of crossing low mountain ranges and the influence of wind conditions are discussed.
Article
An observation of a diurnal migrating Treecreeper Certhia familiaris is described. The bird moved in southerly direction along a river's channel. Sometimes it sang a short sequence, which was more quiet ("subsong") than its normal song.
Article
Levent Turan, Auteur ;
Ali Erdogan, Auteur
The variety of habitat in Kursunlu Redpine Natural Forest has an effect on the biological diversity of the region. This varied biological structure makes the region gain an importance in bird species. The existence of Kingfisher (Alcedo atthis),[...]
