| Titre : | Ornis Fennica 87(1) - 2010 |
| Type de document : | Bulletin |
| Paru le : | 00/00/0000 |
Dépouillements
Article
Jose Carrillo, Auteur ;
Enrique Gonzalez-Davila, Auteur
Geographic location largely determines environmental factors such as photoperiod and primary productivity. Breeding effort in birds may reflect different responses to these geographic-related conditions. We studied geographic variation in mean l[...]
Article
Marta López-Darias, Auteur ;
Beatriz Rumeu, Auteur
Article
Marcin Brzezniski, Auteur ;
Andrzej Zalewski, Auteur ;
Pawel Szalanski, Auteur ;
Rafal Kowalczyk, Auteur
Diet composition and prey selection of wintering Great Grey Shrike (Lanius excubitor) were studied at two sites in north-eastern Poland: in the Mazurian Lakeland and at Bialowieza Glade. The feeding habits of shrikes were recorded on the basis o[...]
Article
Lajos Sasvari, Auteur ;
Isao Nishiumi, Auteur ;
Peter Peczely, Auteur ;
Zoltan Hegyi, Auteur
We examined parental condition, brood sex composition, hatching order and post-hatching testosterone concentration in relation to nestling survival and pre-fledging offspring condition on Tawny Owls Strix aluco in Duna-Ipoly National Park, Hunga[...]
