| Titre : | Vogelwelt (Die) 123(4) - 2002 |
| Type de document : | Bulletin |
| Paru le : | 00/00/0000 |
Dépouillements
Article
Roland Lehmann, Auteur
From 1969 to 1998 the abundance of the Magpie in the district Prenzlauer Berg (10.95 km2) increased from 0.8 p/km2 to 13.3 p/km2. During the same period, the abundance of the Hooded Crow increased from 0.3 p/km2 to 4.6 p/km2. From 1995 to 1998 t[...]
Article
Jochen Bellebaum, Auteur
The first national census of breeding Black-headed Gulls in Germany was undertaken in 1999 and the results were compared to earlier partial counts. A total of 151,400 pairs was counted in 305 colonies, showing a decline of about 25% since 1988, [...]
Article
Susanne Oehlschlaeger, Auteur ;
Torsten Ryslavy, Auteur
The breeding biology of a colour-ringed population of Hoopoes was studied during 1997-2000 on two former military training areas located
Article
Volker Dierschke, Auteur
Twelve-year counts of migrating divers revealed an extrapolated annual number of 27,400 birds (>95% Red-throated Divers) passing the sea in a
Article
Jochen Bellebaum, Auteur
The first national census of breeding Black-headed Gulls in Germany was undertaken in 1999 and the results were compared to earlier partial counts. A total of 151,400 pairs was counted in 305 colonies, showing a decline of about 25% since 1988, [...]
