| Titre : | Vogelwarte 41(4) - Dezember 2002 |
| Type de document : | Bulletin |
| Paru le : | 00/00/0000 |
Dépouillements
Article
Michele Panuccio, Auteur ;
Nicolantonio Agostini, Auteur ;
Bruno Massa, Auteur
Marsh Harriers were observed during their spring migration across the Tyrrhenian Sea on the Island of Ustica (ca. 60 km north of western Sicily) between March 22 and April 16, 2002. During the period, a total of 648 birds were registered, arrivi[...]
Article
Wolfgang Winkel, Auteur ;
Doris Winkel, Auteur ;
Thomas Lubjuhn, Auteur
In the present paper we report about a pair of blue tits (Parus caeruleus) with a clutch of 19 eggs from which 17 young fledged. The nestlings were reared during the breeding season 2002 in a small-sized nestbox of a study area near Brunswick (5[...]
Article
Rob G. Bijlsma, Auteur
In February 2001, wintering Honey Buzzards were observed in southeastern Nigeria during systematic focal watches from fixed observation points. In an area of 600 ha, 34 records were obtained, among which 11 adults, 1 3rd calender-year and 14 juv[...]
Article
Anton Antonov, Auteur ;
Dimitrinka Atanasova, Auteur
This study explored colony pattern, interspecific association and nest-site selection of two closely related species of swift. Common Swift (Apus apus) and Pallid Swift (A. pallidus) in Sofia city, Bulgaria. The numbers and locations of nests we[...]
Article
Wolfgang Winkel, Auteur ;
Doris Winkel, Auteur
We found a Coal Tit pair breeding successfully in the hole of an iron tube of a path-barrier although the tube with the nest inside was constantly raised up from horizontal to vertical position when the barrier was opened.
Article
Thomas Schaefer, Auteur ;
Georg Heine, Auteur
In order to determine predators of baited nests, we developed a photo trap system that bypasses undesired functions of simple AF rangefinder cameras. The system can be fitted with different triggers such as motion sensitive devices and light bar[...]
Article
Volker Salewski, Auteur ;
Res Altwegg, Auteur ;
Amadou Ba, Auteur ;
Felix Liechti, Auteur ;
Dieter Peter, Auteur
Mass and fat scores of Palearctic Trans-Saharan migrants are known in breeding grounds and migration routes north of the Sahara and partially in their winter quarters. However, there are no data from areas south of the Sahara desert. These data [...]
Article
Christoph Randler, Auteur
The two hybrids spent more time feeding and less time resting and in agonistic interaction than the parent species. Comfort behavior equaled that of mallard. None of the hybrids showed courtship behavior. In feeding, the hybrids spent more time [...]
Article
Guenther Busche, Auteur ;
Hans-Georg Kaatz, Auteur
A Kestrel ringed as a pullus female in Schleswig-Holstein, Germany, in 1993 was controlled by a ringer as a breeding bird in Finland in 1994. The distance between the birthplace and the foreign-breeding-place is 1231 km in a NNE direction.
Article
Sergey Sklyarenko, Auteur ;
Eduard Gavrilov, Auteur ;
Andrey Gavrilov, Auteur
Between 1939 and 1999, the Institute of Zoology in Kazakhstan received information on 165 recoveries of 21 species of raptors and 2 species of owls. Of these, 71 were both ringed and recovered in Kazakhstan, while the remaining 94 were either ri[...]
Article
Stefan Bosch, Auteur
Hantaviruses may cause new health problems for biologists and ornithologists working in the field. Hantaviruses are "emerging viruses" belonging to the Bunyaviridae. They are wide-spread in all parts of the world and excreted with urine and fece[...]
Article
Ulf Ottosson, Auteur ;
Franz Bairlein, Auteur ;
Christian Hjort, Auteur
In order to gather information on trans-Saharan migration strategies, phenology and energetics the passage of Palaearctic birds was studied in north-eastern Nigeria close to Lake Chad, in spring 1999 and in spring and autumn 2000. The ringing da[...]
Article
Krista Dziewiaty, Auteur
To estimate possible effects on the stork population along the river Elbe due to various intended habitat modifications the significance of high water during spring on the dyke foreshore and hinterland as feeding habitats was studied from 1990 t[...]
Article
Volker Salewski, Auteur ;
Franz Bairlein, Auteur ;
Bernd Leisler, Auteur
We studied the remigial molt of six Spotted Flycatchers in their winter quarters in Ivory Coast, West Africa. Molt was evident between November and March, with very variable starting dates. Most remiges molted in the dry season when the potentia[...]
Article
Klaus George, Auteur
In a study area of 49.3 ha in the Harz Mountains (Sachsen-Anhalt) Firecrests significantly increased between 1993 and 2002 whereas the breeding stock of Goldcrests showed considerable fluctuations during the same period, and an intense populatio[...]
Article
Stefan Floerchinger, Auteur
A breeding pair of Tree sparrows was observed by a video camera in its nestbox. A single young hatched from a clutch of six eggs. To remove the unhatched eggs with its bill an adult picked a hole into the egg-shell first. Since eggs with small h[...]
