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Article
S. W. Evans, Auteur ; H. Bouwman, AuteurDDT has, since 1946 been used in the intradomicilliary control of malaria in northern KwaZulu-Natal. The Pied Kingfisher was selected as representative for organisms in relatively high trophic levels. Blood was obtained from Pied Kingfishers at [...]
Article
S. W. Evans, Auteur ; H. Bouwman, AuteurDue to the locality of the Blue Swallow Natural Heritage Site it appears that the birds have no alternative but to forage in the mist. The birds cease foraging as soon as it starts raining. Eight eggs failed to hatch after a week in which rainfa[...]
Article
A. M. Rijke, Auteur ; W. A. Jesser, Auteur ; S. W. Evans, Auteur ; H. Bouwman, AuteurThe Blue Swallow is an endangered species in southern Africa and is probably the most endangered passerine. It is restricted to escarpments with grasslands above 1 000 m where mists are frequent. It appears to forage on the wing even in thick mi[...]
