| Titre : | Dansk Ornitologisk Forenings Tidsskrift 113(1) - 2019 |
| Type de document : | Bulletin |
| Paru le : | 00/00/0000 |
Dépouillements
Article
Compass calibrations around sunrise and sunset are generally supposed to be important and necessary for the process and progress of bird migration. However, the question remains whether this is an established fact or just conventional wisdom. Mi[...]
