| Titre : | Ostrich 81(3) - NOV 2010 |
| Type de document : | Bulletin |
| Paru le : | 00/00/0000 |
Dépouillements
Article
Sebastien Jaquemet, Auteur
Article
Bo T. Bonnevie, Auteur
During the analysis of moult records from the SAFRING database it was found that for some datasets the records were not evenly distributed temporally and the proportion of moulting to non-moulting birds was not what would be expected from random[...]
Article
Tiziano Londei, Auteur
The frequently reported close association between the Pied Crow and man suggests a possible explanation for the crow's wide distribution throughout sub-Saharan Africa, but the mode and origin of this association have received little attention. I[...]
Article
Alan Kemp, Auteur
Article
Riad Nedjah, Auteur ;
Abdenour Boucheker, Auteur ;
Farrah Samraoui, Auteur ;
Rachid Menai, Auteur ;
Ahmed Alfarhan, Auteur ;
Khaled A. S. Al-Rasheid, Auteur ;
Boudjema Samraoui, Auteur
During 2002-2007, we assessed the status of the Purple Heron Ardea purpurea in Numidia, Algeria by surveying all the major wetlands in the region. We located six distinct breeding sites; four of these were not previously known. We also investiga[...]
Article
Rutledge S. Boyes, Auteur ;
Michael R. Perrin, Auteur
Meyer's Parrot Poicephalus meyeri is the only cavity-nesting bird species that breeds during winter in the Okavango Delta. This is facilitated by exclusive access to arthropod larvae incubating inside and feeding on fruits and pods in their diet[...]
Article
Sama Zefania, Auteur ;
Razafimahatratra Emilienne, Auteur ;
Patricia J. Faria, Auteur ;
Michael W. Bruford, Auteur ;
Peter R. Long, Auteur ;
Tamás Székely, Auteur
Many small plovers Charadrius spp. have sexually monomorphic plumage and cryptic sexual size dimorphism. The objective of our study was to assess the variation in body sizes between male and female plovers breeding in Madagascar. We collected bl[...]
Article
Miklos Antal, Auteur
Bird mortality caused by electric power lines has been an issue in several countries for more than three decades now. Despite serious efforts by conservationists, government agencies and utility companies assisted by increasing biological and te[...]
Article
Article
J. A. Harrison, Auteur ;
A. J. Williams, Auteur ;
M. MacIver, Auteur
Understanding breeding site preferences is important for management of colonial waterbirds. The number of active colonial waterbird nests at a series of four small constructed wetlands in Cape Town was counted monthly from 1999 to 2008. In total[...]
Article
M. A. Peirce, Auteur ;
M. D. Anderson, Auteur
Article
Alasdair I. V. Gordon, Auteur ;
Nancy M. Harrison, Auteur
Mixed-species foraging flocks were studied at Kichwa Tembo Camp on the edge of the Masai Mara National Reserve in Kenya between July and September 2004. Observations were made on 29 mixed-species flocks, in which 24 species participated. African[...]
Article
Desire L. Dalton, Auteur ;
Antoinette Kotze, Auteur ;
Mark Howitt, Auteur
Red-billed Oxpeckers Buphagus erythrorhynchus are morphologically similar and do not display distinctive phenotypic difference between males and females. The development of DNA-based gender determination techniques constituted a breakthrough in [...]
Article
Flora J. Magige, Auteur ;
Bard G. Stokke, Auteur ;
Eivin Roskaft, Auteur
The Ostrich communal breeding system involves several females laying in a single nest. Only the 'major' female and the territorial male, however, provide parental care from incubation to fledging of chicks. Eggs are turned and displaced frequent[...]
Article
Jared M. Wilson, Auteur ;
Will Cresswell, Auteur
Declines in populations of Palearctic migrants wintering in the Sahel of Africa have been linked to the impacts of climate change and habitat degradation in the region. Despite this, there is an almost complete lack of data on the density and di[...]
Article
Munir Virani, Auteur ;
Paul Kirui, Auteur ;
Ara Monadjem, Auteur ;
Simon Thomsett, Auteur ;
Mwangi Githiru, Auteur
Vulture populations have declined globally as well as regionally within Africa. Little is known about the status of the African White-backed Vulture Gyps africanus in Kenya, but ongoing studies indicate that its population has declined over the [...]
