| Titre : | Ostrich 73(1-2) - MAR 2002 |
| Type de document : | Bulletin |
| Paru le : | 00/00/0000 |
Dépouillements
Article
P. G. Ryan, Auteur ;
C. L. Moloney, Auteur
Inaccessible Island, Tristan do Cunha, supports two colour morphs of Tistan Buntings, Nescispiza (a.) acunhae, Wilkins' Buntings, N. (wilkinsi) dunnei, and interspecific hybrids between Tristan and Wilkins' Buntings. Breeding takes place in the [...]
Article
P. J. B. Slater, Auteur ;
D. Gil, Auteur ;
C. R. Barlow, Auteur ;
J. A. Graves, Auteur
Many duetting species are monomorphic and the suggestion has recently been made that duets may be female-led more often than has been supposed in the post. Observations were carried out on several marked individuals of two monomorphic duetting s[...]
Article
P. J. Jones, Auteur ;
C. C. H. Elliott, Auteur ;
R. A. Cheke, Auteur
This paper evaluates potential methods for estimating the hatching dates of free-flying juvenile Red-billed Queleas, Quelea quelea, and hence establishing their likely geographical origins and patterns of post-natal dispersal. Based on studies o[...]
Article
P. J. Jones, Auteur ;
M. Dallimer, Auteur ;
R. A. Cheke, Auteur ;
P. J. Mundy, Auteur
Two subspecies of the Red-billed Quelea, Quelea quelea lathamii and Q. q. spoliator, have been described from southern Africa on the basis of differences in dorsal colouration In non-breeding plumage, but the validity of spoliator has often been[...]
Article
S. M. Goodman, Auteur ;
L. A. Weigt, Auteur
The generic and specific relationships of the Malagasy rock-thrushes, variously placed In the genus Monticola or as an endemic genus Pseudocossyphus, are examined using morphological and molecular characters. On the basis of mitochondrial DNA cy[...]
Article
Diet of the Cape Parrot, Poicephalus robustus, in Afromontane forests in KwaZulu-Natal, South Africa
J. O. Wirminghaus, Auteur ;
C. T. Downs, Auteur ;
C. T. Symes, Auteur ;
M. R. Perrin, Auteur
Cope Parrots, Poicephalus robustus, occur in Podocarpus (yellow-wood) Afromontane forest patches from the Eastern Cape to southern KwaZulu-Natal, South Africa, They are food nomadics moving locally between forest patches in search of food, and o[...]
Article
A. Monadjem, Auteur
The community structure and population density of birds was studied at four sites in Acacia savanna in the lowveld of Swaziland. Birds were surveyed monthly between June 1998 and May 1999 using a standard point-count technique, A total of 128 sp[...]



