| Titre : | Ostrich 68(2-4) - JUN-DEC 1997 |
| Type de document : | Bulletin |
| Paru le : | 00/00/0000 |
Dépouillements
Article
C. A. Whittington-Jones, Auteur
Distribution records obtained from the South African Bird Atlas Project (SABAP) and from published literature show that the known distribution of Redbilled Quelea in the Eastern Cape has changed dramatically over the last century. Increased sear[...]
Article
S. M. Goodman, Auteur ;
P. Parrillo, Auteur
Article
P. LLoyd, Auteur ;
AJFK Craig, Auteur ;
P. E. Hulley, Auteur ;
M. F. Essop, Auteur ;
P. Bloomer, Auteur ;
T. M. Crowe, Auteur
The closely related Blackeyed Bulbul Pycnonotus barbatus, Cape Bulbul P. capensis and Redeyed Bulbul P. nigricans have parapatric to locally sympatric distributions within southern Africa. Extensive hybridization along narrow transition zones be[...]
Article
J. J. Herholdt, Auteur ;
A. C. Kemp, Auteur ;
D. Du Plessis, Auteur
Article
G. Kopij, Auteur
The breeding ecology of the African Spoonbill is surprisingly little known. In the Free State, the number of nesting African Spoonbills appears to have declined; 120 nests in 11 colonies were located in 1972-1973, compared to 32 nests in four co[...]
Article
L. G. Underhill, Auteur ;
G. D. Underhill, Auteur
Rock Pigeons Columba guinea in the Western Cape, South Africa, take an estimated 7.2 months to complete primary moult. The mean starting and completion dates are 26 December and 2 August, with 95% of birds starting and completing within two mont[...]
Article
P. G. Ryan, Auteur
Article
Flamingo 'rescue' in Etosha National Park, 1994: technical, conservation and economic considerations
V. E. Fox, Auteur ;
P. M. Lindeque, Auteur ;
R. E. Simmons, Auteur ;
H. H. Berry, Auteur ;
C. Brain, Auteur ;
R. Braby, Auteur
During April 1994, 144 Greater Flamingo Phoenicopterus ruber chicks were taken from Etosha Pan, Namibia, following drying of the shallow water and the death of hundreds of chicks. The captured chicks ranged from approximately 2 weeks to 2 months[...]
Article
Breeding status and ecology of the martial eagle in the Kalahari Gemsbok National Park, South Africa
J. J. Herholdt, Auteur ;
A. C. Kemp, Auteur
The success of 16 nesting areas (territories) of Martial Eagles was monitored for seven successive years (1988-1994) in a protected area in the Kalahari desert of South Africa. Martial Eagles mostly laid in consecutive years (38 out of 53 attemp[...]
Article
C. Dranzoa, Auteur
The forests at the shores of Lake Victoria had considerable attention from researchers during the 1970s. Ziika forest is one of the many small forest fragments that fringe the northern part of the lake. This 12 ha forest is surrounded by differe[...]
Article
R. J. Safford, Auteur
The Mauritius Fody Foudia rubra, a highly endangered species of weaver (Ploceidae) endemic to Mauritius, was studied from 1989-1993. The plumage, various display postures (typical of the family), and seven adult and two juvenile vocalisations ar[...]
Article
W. Cresswell, Auteur ;
M. Irwin, Auteur ;
M. Jensen, Auteur ;
A. Mee, Auteur ;
R. Mellanby, Auteur ;
M. McKean, Auteur ;
L. Milne, Auteur
The density of landbird species within different habitats, and presence within 4 ha squares, on Silhouette Island were recorded in August 1996, repeating a previous survey (January 1979). Densities of the four most common species were calculated[...]
Article
R. Kyle, Auteur
