| Titre : | Ostrich 74(3-4) - SEP 2003 |
| Type de document : | Bulletin |
| Paru le : | 00/00/0000 |
Dépouillements
Article
H. D. Jackson, Auteur
Article
P. A. Bartlett, Auteur ;
J. P. Roux, Auteur ;
R. Jones, Auteur ;
J. Kemper, Auteur
Article
M. Winterbottom, Auteur ;
T. R. Birkhead, Auteur
Article
A. Schwarzenberger, Auteur ;
W. R. J. Dean, Auteur
We surveyed the bird species richness and abundance at 12 sites in gardens and four sites in natural woodlands at Prince Albert, Western Cape, South Africa, over a two-month period, from 14 September to 15 November 1999. Bird numbers were estima[...]
Article
J. H. van Niekerk, Auteur
Article
W. R. J. Dean, Auteur ;
S. Milton, Auteur
The behaviour and activities of 6 458 raptors; (Accipitridae and Falconidae) and 1 947 Corvidae in the Karoo, South Africa, were recorded during the period January 1988 to June 2000 (n = 208 surveys) over a total distance of 90 012km. A signific[...]
Article
W. R. J. Dean, Auteur ;
M. P. S. Irwin, Auteur ;
D. J. Pearson, Auteur
Article
Waterbird populations at the Orange River mouth from 1980-2001: a re-assessment of its Ramsar status
M. D. Anderson, Auteur ;
H. Kolberg, Auteur ;
P. C. Anderson, Auteur ;
J. Dini, Auteur ;
A. Abrahams, Auteur
The Orange River mouth (ORM), at the end of the longest river in South Africa, is one of few perennial wetlands on the and south-west African coast. The ORM supports a large number of waterbirds, with a maximum of
Article
H. D. Jackson, Auteur
Article
M. A. Schlee, Auteur ;
A. E. Iorgulescu, Auteur
The postural and auditory components of the behaviour depicted in the type illustration of Gypohierax angolensis are described and analysed. The display, here termed the forward-and-down display (FDD), was used by the female in territorial defen[...]
Article
B. M. Coverdale, Auteur ;
K. I. McCann, Auteur
Article
R. E. Simmons, Auteur ;
J. Kemper, Auteur
Only three mainland sites are known among the total 27 breeding colonies of the African Penguin, Spheniscus demersus: two in South Africa and one in Namibia. The latter is a unique cave site near the northern extreme of the species' range on the[...]
Article
D. Currie, Auteur ;
M. Hill, Auteur ;
T. Vel, Auteur ;
R. Fanchette, Auteur ;
C. Hoareau, Auteur
The only data previously recorded on the diet of the critically endangered, endemic Seychelles Scops Owl, Otus insularis, is from the stomach contents of a few museum specimens and analysis of one pellet. Data are presented on more than 400 prey[...]
Article
H. D. Jackson, Auteur
Nightjars (Caprimulgidae) in the Afrotropical Region feed almost exclusively on night flying insects, which they hunt during twilight and moonlight. Without the benefit of echolocation, they detect prey visually before pursuing and capturing it [...]
Article
Population densities and community structure of birds in riverine forest in the lowveld of Swaziland
A. Monadjem, Auteur
Population density and community structure of birds were studied at three sites in riverine forest in the lowveld of Swaziland. Birds were surveyed monthly using a standard point count technique. A total of 101 species of birds was recorded. Spe[...]
