| Titre : | Ostrich 79(1) - APR 2008 |
| Type de document : | Bulletin |
| Paru le : | 00/00/0000 |
Dépouillements
Article
Meyrick B. Bowker, Auteur ;
Colleen T. Downs, Auteur
The Great White Pelican Pelecanus onocrotalus and the Pink-backed Pelican P. rufescens are flagship species for the Greater St Lucia Wetland Park, north-eastern KwaZulu-Natal, South Africa. The traditional breeding sites for the Great White Peli[...]
Article
Claire N. Spottiswoode, Auteur ;
I. Hassam Patel, Auteur ;
Eric Herrmann, Auteur ;
Jonathan Timberlake, Auteur ;
Julian Bayliss, Auteur
The montane forests of northern Mozambique and southern Malawi support several bird species of global conservation concern, and particularly in Malawi are seriously threatened by deforestation. However, the status of these in northern Mozambique[...]
Article
H. Dieter Oschadleus, Auteur
Article
Shernice Soobramoney, Auteur ;
Michael R. Perrin, Auteur
The foraging efficiencies of four sympatric southern African seed-eating birds, namely Bronze Mannikin Spermestes cucullatus, Cape Sparrow Passer melanurus, Southern Red Bishop Euplectes orix and Thick-billed Weaver Amblyospiza albifrons, and a [...]
Article
H. D. Jackson, Auteur
A collection of 96 nightjars, representing six species, were taken in Zimbabwe during the first half of January, which is a major part of their post-breeding moult period, to provide extensive data on their patterns and sequences of moult. It wa[...]
Article
Jan F. Kamler, Auteur ;
Terence N. Suinyuy, Auteur ;
William Goulding, Auteur
Article
Craig T. Symes, Auteur ;
John W. Wilson, Auteur
We investigated primary moult and morphometrics in the Green-winged Pytilia Pytilia melba during a six-month period (May-October) in central South Africa. A total of 157 pytilias were captured; 80 (51.0%) of these were in active primary moult du[...]
Article
Tahla M. Ansara-Ross, Auteur ;
Victor Wepener, Auteur ;
Gerhard H. Verdoorn, Auteur ;
Mathew J. Ross, Auteur
Sexual dimorphism was studied in four South African owl species (African Grass-Owl Tyto capensis, Barn Owl T alba, Marsh Owl Asio capensis and Spotted Eagle-Owl Bubo africanus) by examining specimens of intact owl carcasses found killed by vehic[...]
Article
Stuart Taylor, Auteur ;
Michael R. Perrin, Auteur
We generated a generalised growth curve for the Brown-headed Parrot Poicephalus cryptoxanthus. The growth model correlated well with the data from captive-bred chicks and should be used by ecologists and aviculturists to monitor the health of ch[...]
Article
David Potgieter, Auteur ;
Mark Brown, Auteur ;
Colleen T. Downs, Auteur
Species worldwide are threatened due to various factors including habitat transformation and degradation. The Gurney's Sugarbird Promerops gurneyi is a bird species endemic to southern Africa. It is a nectarivorous species that is highly depende[...]
Article
Colleen T. Downs, Auteur
Most avian frugivores are not specialised and feed on a variety of fruit that are generally nutrient dilute. Little is known about avian frugivores that supplement their diets with insects as a nutrient source. Although considered a frugivore, t[...]
Article
Mohammed Znari, Auteur ;
Mohamed Aourir, Auteur ;
Mohamed Radi, Auteur ;
Jean-Michel Melin, Auteur
Aspects of the breeding biology of the Black-bellied Sandgrouse Pterocles orientalis were investigated in an and area of west-central Morocco in the 2003 and 2004 seasons. Back-dating clutches and broods indicated that successful nesting lasted [...]
Article
L. Staverees, Auteur ;
R. J. M. Crawford, Auteur ;
L. G. Underhill, Auteur
In the 2002/2003 breeding season at Malgas Island, South Africa, 125 nests of Cape Gannets Morus capensis, of which at least one partner was of known age, were monitored. The age of birds at these nests ranged from five to 22 years. At five nest[...]
