| Titre : | Dansk Ornitologisk Forenings Tidsskrift 99(2) - 2005 |
| Type de document : | Bulletin |
| Paru le : | 00/00/0000 |
Dépouillements
Article
Kurt K. Burnham, Auteur ;
William Burnham, Auteur
Dovekies Alle alle form breeding colonies of thousands of birds in North Greenland. One of their major predators, the Glaucous Gull Larus hyperboreus, attacks Dovekies while they attend their breeding colony. We found that Dovekies at the edge a[...]
Article
Data were collected during 1977-1997 in a 2417 km(2) study area in Vendsyssel (see Nielsen 2004a for details on methods and study area). Time of laying was estimated from nestling age at ringing, based on wing measurements, and on incubation per[...]
Article
Timme Nyegaard, Auteur ;
Michael Borch Grell, Auteur
This paper gives an overview of occurrence and population trends of 39 threatened or rare Danish breeding birds, summarizing the results obtained in 2004 by the working group on the monitoring of threatened and rare breeding birds. The monitorin[...]
