Tag: all of Bubo

Reproductive success of a reintroduced population of Eagle Owls Bubo bubo in relation to habitat characteristics in the Eifel, Germany.

Eurasian Eagle-Owl (Bubo bubo) Science Article 8 abstract Eagle Owls Bubo bubo were successfully reintroduced in the Eifel (Germany) in 1974-1999. Here we analyse whether reproductive success was related to habitat characteristics and if the patterns of habitat use and reproduction changed during the population increase. Microclimatic as well as mesoclimatic conditions influenced reproductive success. […]

Development of chicks and predispersal behaviour of young in the Eagle Owl Bubo bubo

Eurasian Eagle-Owl (Bubo bubo) Science Article 10 abstract Little quantitative information on the development and behaviour of chicks and young is available for many species, despite the crucial importance of such data and the sensitivity of this stage in a bird’s life. For Eagle Owls Bubo bubo, despite the large amount of scientific literature on […]

First record of cooperative nesting in the Eagle Owl Bubo bubo

Eurasian Eagle-Owl (Bubo bubo) Science Article 11 abstract Monogamy appears to be the most commonmating system amongst raptors and owls. However,alternative breeding strategies have beendescribed (i.e. polygyny, polyandry and cooperativebreeding; Newton, 1979; Mikkola,1983; Del Hoyo et al., 1999; Hatchwell &Komdeur, 2000). Recent studies have shownthat co-operative breeding is much more widespreadthan had previously been thought; […]

Factors affecting the vocal behaviour of Eagle Owls Bubo bubo: effects of sex and territorial status

Eurasian Eagle-Owl (Bubo bubo) Science Article 3 abstract We performed a playback experiment in order to assess the efficiency of two methods for detecting Eagle Owls Bubo bubo and to assess factors affecting detection rates. In each experimental visit we recorded the number and sex of the responding owls, the calling rate and the corresponding […]