| Titre : | Vogelwelt (Die) 120(3) - 1999 |
| Type de document : | Bulletin |
| Paru le : | 00/00/0000 |
Dépouillements
Article
Peter Berthold, Auteur
On April 22, 1999, I was able to observe how two Crested Tits (most likely a breeding pair in the preincubation period) moved into their roosting sites and what roosts they chose. One individual - presumably the female - went into an old bird ne[...]
Article
Reuven Yosef, Auteur ;
Daniel Afik, Auteur
Several hypotheses try to explain the role of paving the nest area with flat stones as it occurs in several desert bird species. Suggestions range from discouraging predators to protection from weather, camouflage, facilitation of self-incubatio[...]
Article
Bjarke Laubek, Auteur ;
Leif Nilsson, Auteur ;
Maria Wieloch, Auteur ;
Kees Koffijberg, Auteur ;
Christoph Sudfeldt, Auteur ;
Arne Follestad, Auteur
The first coordinated international census of Whooper Swans wintering in continental NW Europe was carried out in January 1995. In total, 52,000 Whooper Swans were counted. As coverage was not complete, the population was estimated to comprise 5[...]
Article
Karl-Heinz Loske, Auteur ;
Thomas Laumeier, Auteur
The results of a twenty year (1979-1998) survey of a Sand Martin population in Middle Westphalia are presented. The study area covers 320 km2 along the river Lippe between Lippstadt (51degree42', 08degree24) and Paderborn (51degree44', 08degree4[...]
