‘Broken wing display’ in an unfledged Indian Eagle Owl Bubo bengalensis

Brightness variability in the white badge of the eagle owl Bubo bubo

The application of modern spectrometry to the study of avian colour variability has revealed ignored patterns of colour variation such as male-biased sexual dichromatism and seasonal variability in the plumage. However, the variation in the achromatic property of such traits, that is in the total light reflectance of the spectrum (i.e., brightness), has commonly been overlooked. The evolution o...

Factors influencing territorial occupancy and reproductive success in a Eurasian Eagle-owl (Bubo bubo) population

Modelling territorial occupancy and reproductive success is a key issue for better understanding the population dynamics of territorial species. This study aimed to investigate these ecological processes in a Eurasian Eagle-owl (Bubo bubo) population in south-eastern Spain during a seven-year period. A multi-season, multi-state modelling approach was followed to estimate the probabilities of oc...

Broods of Five Fledglings in the Eurasian Eagle-Owl (Bubo bubo)

Isolation of Salmonella Enteritidis phage type 21b from a Eurasian eagle-owl (Bubo bubo).

A case of fatal salmonellosis in a Eurasian eagle-owl (Bubo bubo) from Bursa Province (northwestern Turkey) is described. The organs of the bird were examined histopathologically and microbiologically. Macroscopic and microscopic findings were consistent with a Salmonella infection. Salmonella enterica subspecies enterica serovar Enteritidis (S. Enteritidis) phage type (PT) 21b was isolated fro...

Landscape structure and food supply affect eagle owl (Bubo bubo) density and breeding performance: a case of intra-population heterogeneity

Vincenzo Penteriani, Max Gallardo and Philip Roche l Department of Applied Biology, Estació n Bioló gica de Doñ ana, C.S.I.C., Avda. de Maria Luisa s/n., Pabelló n del Perú , Apdo l056, 4l0l3 Seville, Spain 2 Parc Naturel Régional du Luberon, 60 place Jean Jaurès, BP l22, 84404 Apt, France 3 Institut Méditerranéen d’Ecologie et de Paléoécologie, Université d’Aix-Marseille, FST St Jerome, Case 4...