| Titre : | Ornis Fennica 77(1) - 2000 |
| Type de document : | Bulletin |
| Paru le : | 00/00/0000 |
Dépouillements
Article
J. Sorjonen, Auteur ;
J. Merilä, Auteur
Male bluethroats (Luscinia svecica) have a complex song which is often delivered in the form of song flights. Earlier studies, based upon timing of display, indicate that the chief function of the bluethroat's song was for mate attraction/retent[...]
Article
P. G. Jablonski, Auteur ;
S. D. Lee, Auteur
Article
T. Solonen, Auteur
The relationships between weight, abundance (as a measure of availability), and vulnerability of prey of the Sparrowhawk were studied on the basis of five data sets from the Nordic countries. The purpose of the study was to find out whether the [...]
Article
S. Dale, Auteur
The majority of the Norwegian population of the endangered Ortolan Bunting, Emberiza hortulana, breeds on raised peat bogs. I studied whether their breeding site selection was affected by the availability of another habitat (farmland) close to b[...]
Article
O. Ratti, Auteur
Proposed reasons for female aggression include defence of nest site or food resources on their territory, prevention of intraspecific brood parasitism or infanticide, or monopolisation of male's contribution to feeding of young. Here I investiga[...]
Article
K. L. Wiebe, Auteur ;
K. I. Jonsson, Auteur ;
J. Wiehn, Auteur ;
H. Hakkarainen, Auteur ;
E. Korpimäki, Auteur
To investigate time, energy, and temperature constraints on hatching asynchrony in Eurasian Kestrels (Falco tinnunculus), we observed females during the laying period and quantified the time spent hunting to see whether this might limit time spe[...]
