| Titre : | Ornis Fennica 90(2) - 2013 |
| Type de document : | Bulletin |
| Paru le : | 00/00/0000 |
Dépouillements
Article
Risto Tornberg, Auteur ;
Seppo Haapala, Auteur
The Marsh Harrier Circus aeruginosus population has expanded rapidly during the last decades in northern Finland. We studied the diet of Marsh Harrier during the breeding seasons 2002-2009 on the isle of Hailuoto in the Gulf of Bothnia in Finlan[...]
Article
Nicholas Per Huffeldt, Auteur ;
Torben Dabelsteen, Auteur
Low-frequency ambient noise is known to cause shifts in the song frequency of different species of songbirds, such as the Great Tit (Parus major). The present study was conducted to test the generality of these findings by measuring the distribu[...]
Article
Dariusz Jakubas, Auteur ;
Brygida Manikowska-Slepowronska, Auteur
Human-caused disturbances affect, e.g., the spatial distribution and breeding performance of most organisms, including birds. Here, we assessed the response of Grey Herons (Ardea cinerea) to frequent human disturbance in a large heron colony in [...]
Article
Jón Einar Jónsson, Auteur ;
Smari J. Luoviksson, Auteur
Birds change nest sites between years in response to breeding success in previous years, activities of other breeders, or weather conditions. Sixteen years of banding data and nest counts of the Common Eider in Rif, western Iceland, were used to[...]
Article
Dorthe Pedersen, Auteur ;
Kasper Thorup, Auteur ;
Peter Sunde, Auteur ;
Lars Bo Jacobsen, Auteur ;
Carsten Rahbek, Auteur
Before dispersal, social and spatial behaviour in owls has only been briefly studied. We used radio tracking to monitor age-influenced social and spatial behaviour in 10 juvenile Little Owls (Athene noctua) from nests in Northern Jutland, Denmar[...]
Article
Johan Mansson, Auteur ;
Lovisa Nilsson, Auteur ;
Mikael Hake, Auteur
Information on how birds use different types of habitat and move within landscapes is crucial for avian ecology, conservation and management. The Common Crane Grus grus has the widest distribution of all crane species and covers both increasing [...]
