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Article
A. B. Makhado, Auteur ; R. J. M. Crawford, Auteur ; M. P. Dias, Auteur ; B. M. Dyer, Auteur ; T. Lamont, Auteur ; P. Pistorius, Auteur ; P. G. Ryan, Auteur ; L. Upfold, Auteur ; H. Weimerskirch, Auteur ; R. R. Reisinger, AuteurDemographic parameters of wild animals are often closely associated with their foraging distribution and behaviour, and understanding these attributes can assist in identifying causes of population changes. The Indian Yellow-nosed Albatross (Tha[...]
Article
R. J. M. Crawford, Auteur ; B. M. Dyer, Auteur ; L. Upfold, Auteur ; V. L. Ward, AuteurSome Bank Cormorants, Phalacrocorox neglectus, breed when two years old, but others defer breeding until aged three years. Their mean age at breeding is about 2.5 years. Although some Cape Cormorants, P. capensis, breed when 1.5 years old or les[...]
Article
L. Staverees, Auteur ; R. J. M. Crawford, Auteur ; L. G. Underhill, AuteurIn 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[...]
Article
R. J. M. Crawford, Auteur ; B. L. Dundee, Auteur
Article
R. J. M. Crawford, Auteur ; B. M. Dyer, Auteur ; L. Upfold, AuteurAt Bird Island, Lambert's Bay, and Malgas Island, South Africa, small numbers of Cape Cormorants Phalacrocorax capensis may breed at any time of the year, but the main breeding season is from September to February. At Malgas Island, Crowned Corm[...]
Article
R. J. M. Crawford, Auteur ; D. C. Nel, Auteur ; A. J. Williams, Auteur ; A. Scott, AuteurAt Malgas Island, Western Cape Province, South Africa, active nest sites of Kelp Gulls were recorded from August to February, but mainly between October and December with a peak in November. In August and September all active sites were recently[...]
