| Titre : | Ornis Fennica 89(3) - 2012 |
| Type de document : | Bulletin |
| Paru le : | 00/00/0000 |
Dépouillements
Article
Riho Marja, Auteur ;
Irina Herzon, Auteur
Land drainage exhibits a considerable impact on biodiversity. Drainage ditches - a regionally common landscape element carry a number of benefits for birds associated with farmland. The aim of this study was to quantify a relative value of ditch[...]
Article
Adam Watson, Auteur ;
Stuart Rae, Auteur ;
Sandy Payne, Auteur
We report colonisation by extra breeding pairs of Golden Eagles, and subsequent abandonments, in part of northeast Scotland during 1895-1985. The number of pairs rose from three in 1895-1937 to eight by 1948, and then fell to four during 1959-71[...]
Article
Martin Strnad, Auteur ;
Michal Nemec, Auteur ;
Petr Vesely, Auteur ;
Roman Fuchs, Auteur
We studied the ability of Red-backed Shrikes to adjust their nest defence to the potential threat posed to defending adults and their nests. We presented mounts of two raptor species which prey on adult birds (Eurasian Sparrowhawk, Common Kestre[...]
Article
Ignacio Munilla, Auteur ;
Jose Guitian, Auteur
The main aim of our study was to investigate the coupling between the winter abundance of a seed-eater, the Bullfinch Pyrrhula pyrrhula, and the abundance of rowanberry Sorbus aucuparia seeds. We detected a numerical response of Bullfinches to t[...]
Article
Maria K. Bostrom, Auteur ;
Sven-Gunnar Lunneryd, Auteur ;
Hanna Stahlberg, Auteur ;
Lars Karlsson, Auteur ;
Bjarne Ragnarsson, Auteur
This study determines Cormorant (Phalacrocorax carbo sinensis) diet composition and prey size at two areas 6 km apart, at Bay Lovstabukten, Sweden, in 2005. The study entails the examination of 333 pellets and 2,669 regurgitated fish. To determi[...]
Article
Per Wegge, Auteur ;
Halvor Ingul, Auteur ;
Vebjorn Oppegaard Pollen, Auteur ;
Emil Halvorsrud, Auteur ;
Andrey V. Sivkov, Auteur ;
Olav Hjeljord, Auteur
Egg predation is an important determinant of breeding success among boreal forest grouse, but the relative roles of mammalian and avian predators are poorly known. During spring/early summer of 2010, predation on artificial nests was studied by [...]
Article
Marcin Tobolka, Auteur ;
Tim H. Sparks, Auteur ;
Piotr Tryjanowski, Auteur
The White Stork (Ciconia ciconia) is an icon of nature protection and one of the easiest birds to monitor, particularly in Central Europe. Here avian biodiversity was compared between sites (territories) occupied by nesting White Storks and site[...]
Article
Beata Czyz, Auteur ;
Marta Borowiec, Auteur ;
Aleksandra Wasniska, Auteur ;
Robert Pawliszko, Auteur ;
Katarzyna Mazur, Auteur
Dispersal during the breeding season is common among multiple-brooding bird species, such as the Penduline Tit Remiz pendulinus, in which both sexes are sequentially polygamous and one or both parents may abandon the clutch. Penduline Tits were [...]
Article
Elisabeth C. Charman, Auteur ;
Ken W. Smith, Auteur ;
Steve Dodd, Auteur ;
Derek J. Gruar, Auteur ;
Ian A. Dillon, Auteur
Lesser Spotted Woodpeckers Dendrocopos minor have dramatically declined and retracted in range in Britain. Pre-breeding foraging may be critical and, although work has been carried out elsewhere in Europe our knowledge of habitat requirements fo[...]
