| Titre : | Ornis Fennica 82(4) - 2005 |
| Type de document : | Bulletin |
| Paru le : | 00/00/0000 |
Dépouillements
Article
J. Bellebaum, Auteur
Flock composition and interspecific dominance were studied in Black-headed Gulls and Herring Gulls wintering at an inland refuse dump in Germany. Herring Gulls were the dominant species and forced the much more numerous Black-headed Gulls to for[...]
Article
P. Wegge, Auteur ;
S. Eliassen, Auteur ;
M. H. Finne, Auteur ;
M. Odden, Auteur
Capercaillies have a lek-like mating system, with partly overlapping male daytime ranges extending radially out from smaller display territories at the lek. With VHF telemetry, we studied the spatial interactions among neighbouring adult males ([...]
Article
E. Schei, Auteur ;
P. R. Holmstad, Auteur ;
A. Skorping, Auteur
We examined the hypothesis that endoparasites of Willow Grouse (Lagopus lagopus L.) affect host winter losses, by examining two samples of Willow Grouse collected in early autumn and late winter. Body condition of juvenile birds improved from Se[...]
Article
P. H. Klatt, Auteur ;
C. A. Paszkowski, Auteur
In the Red-necked Grebe (Podiceps grisegena), breeding pairs use both overt aggression and ritualistic behavior to defend territories for breeding and feeding. Examining the influence of factors determining territory size simultaneously continue[...]
Article
D. P. Padilla, Auteur ;
M. Nogales, Auteur ;
A. J. Perez, Auteur
The diet and prey selection of the Southern Grey Shrike (Lanius meridionalis koenigi) was studied in one of the scarce insular environments where it is present, the xeric coastal area of Tenerife (Canary Islands). The main aim of this study was [...]
