La Tour du Valat

Institut de recherche pour la conservation des zones humides méditerranéennes

Titre :	South African Wattled Crane supplementation programme June 1999-June 2000, with notes on the non-breeding flock in KwaZulu-Natal
Auteurs :	A. Burke, Auteur ; V. Hudson, Auteur ; H. Wilkins, Auteur ; K. McCann, Auteur ; F. Krige, Auteur ; W. Foden, Auteur ; L. Rodwell, Auteur
Type de document :	Article
Dans :	Ostrich (No number JUL 2001)
Article en page(s) :	143-146
Langues:	Anglais
Résumé :	Three costume-reared juvenile Wattled Cranes were released to a non-breeding flock of Wattled Cranes in KwaZulu-Natal, South Africa in February and April 2000. The birds were released singly and as a cohort of 2 birds. All 3 remain alive at the time of this writing. The adult flock initially exhibited extreme aggression towards the single bird, while the 2 birds experienced only low intensity threats. The single bird and the female of the cohort fully integrated with the wild flock 5 and 11 days post release. The male of the cohort did not join with any cranes. Integrated birds dispersed 30 km (n = 2) and the lone bird dispersed 5 km (n = 1) from the release site. All birds exhibited improper roosting behaviour. In future releases, young birds will be trained to roost in open water prior to release. Results suggest that bird age, physical and behavioural development at release, and specific time of release are factors wic influence integration of young, inexperienced birds into a wild flock.

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