| Titre : | Ornis Fennica 84(4) - 2007 |
| Type de document : | Bulletin |
| Paru le : | 00/00/0000 |
Dépouillements
Article
Bao-Sen Shieh, Auteur ;
Shih-Hsiung Liang, Auteur
Song has been an important subject in studying geographic variation and cultural evolution across bird populations, but the quantitative analysis of song has been problematic. The aim of this study is to investigate the temporal changes and geog[...]
Article
Ari Jantti, Auteur ;
Harri Hakkarainen, Auteur ;
Markku Kuitunen, Auteur ;
Jukka Suhonen, Auteur
Forest loss and fragmentation induces harmful ecological effects especially for species preferring mature forests. The Eurasian Treecreeper, Certhia familiaris, is highly specialised in foraging on large tree trunks and can only occasionally for[...]
Article
Hilde Marie Johansen, Auteur ;
Vidar Selås, Auteur ;
Kristine Fagerland, Auteur ;
Jon Trygve Johnsen, Auteur ;
Bjorn-Arild Sveen, Auteur ;
Luis Tapia, Auteur ;
Ronny Steen, Auteur
During the past decades, goshawk (Accipiter gentilis) populations have declined in torest-dominated landscapes in Norway. To reveal the importance of different prey species in forest versus farmland landscapes, we video recorded 146 prey deliver[...]
Article
Iñigo Zuberogoitia, Auteur ;
Jabi Zabala, Auteur ;
Jose Antonio Martinez, Auteur ;
Sonia Hidalgo, Auteur ;
José Enrique Martínez, Auteur ;
Ainara Azkona, Auteur ;
Inaki Castillo, Auteur
Most owl species exhibit territorial behaviour in order to have sufficient resources to maintain their fitness and biological success. The Little Owl (Athene noctua) has been considered a territorial species, although some authors have pointed t[...]
Article
Wieslaw Walankiewicz, Auteur ;
Dorota Czeszczewik, Auteur ;
Cezary Mitrus, Auteur
Knowledge of habitat and nest site selection of secondary hole nesting birds under primeval conditions may aid in managing forests and in conservation biology. We studied location (n=768) and dimensions (n=624) of Collared Flycatcher nests in na[...]
