| Titre : | Ornis Fennica 81(2) - 2004 |
| Type de document : | Bulletin |
| Paru le : | 00/00/0000 |
Dépouillements
Article
To cope with fluctuating environments animals have evolved reversible phenotypic flexibility. Some birds demonstrate this phenomenon by changing mass and flight muscle according to changes in wing loading. During moult, birds suffer from reduced[...]
Article
J. Kosicki, Auteur ;
T. Sparks, Auteur ;
P. Tryjanowski, Auteur
Article
T. Solonen, Auteur
Relationships between winter temperatures, vole abundance, and the occurrence and breeding of various vole-eating owls were studied on the basis of Finnish data collected in 1986-2000. The species included two resident generalists (Tawny Owl Str[...]
Article
Article
M. Takagi, Auteur
The date of initiation of reproduction was studied in Bull-headed Shrikes (Lanius bucephalus) to test whether this date allows time for re-nesting and successfully laying a second clutch, and whether nest predation influences chances of re-nesti[...]
