La Tour du Valat

Institut de recherche pour la conservation des zones humides méditerranéennes

Titre :	Breeding ecology of the African Spoonbill platalea alba in the Free State, South Africa
Auteurs :	G. Kopij, Auteur
Type de document :	Article
Dans :	Ostrich (68(2-4) JUN-DEC 1997)
Article en page(s) :	77-79
Langues:	Anglais
Résumé :	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 colonies in 1993-1996 (though this later survey may have missed a few small colonies). In 1976-1977, a colony with 15 active spoonbill nests was monitored for an entire breeding season. Mean clutch size was 2.6 (n = 15); 56% of eggs hatched; 91% of hatched eggs resulted in fledglings; and chicks fledged from 53% of nests. The main food of spoonbill chicks was frogs, mainly Rana angalensis and Xenopus laevis, and aquatic invertebrates.

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