| Titre : | Ornithologischer Anzeiger 37(3) - Oct., 1998 |
| Type de document : | Bulletin |
| Paru le : | 00/00/0000 |
Dépouillements
Article
Examining the dispersal of reintroduced Ural Owls Strix uralensis in the National Park Bayerischer Wald using radiotelemetry in the years 1994 and 1995 and from sightings of this owl-species between 1977 and 1995, numerous data of habitat choice[...]
Article
Within the waterfowl community of the Perach river reservoir, population decline and shifts from herbivores and invertebrate feeders to omnivores beginning in 1980 continued due to reservoir maturing effects (see UTSCHICK 1996). Since 1987, only[...]
Article
From 1989 to 1997, 449 broods of Kestrels were monitored and 1669 nestlings ringed. All breeding activity took place in nest boxes attached to buildings. The average clutch size was 5.15 eggs, the average number of hatchlings 4.81 per clutch. Mo[...]
Article
Cormorants Phalacrocorax carbo sinensis are regularly counted at their roost Pleidelsheimer Baggersee 20 km north of Stuttgart/SW-Germany at least three times per month. There is a continuing steady increase in numbers in contradiction to the nu[...]
Article
Article
It must be assumed that the American Wigeon Anas americana found 1990 on a pond in a park and another one amongst Mallards fed by people 1981 were no wild birds. Two young males, however, one shot Oct 10, 1992 at the fishponds near Hochstadt/Ais[...]
