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Institut de recherche pour la conservation des zones humides méditerranéennes

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Titre :	Winter diet and lead poisoning risk of Greater Spotted Eagles Clanga clanga in southeast Spain (2020)
Auteurs :	Juan Manuel Pérez-García, Auteur ; Jana Marco-Tresserras, Auteur ; Adrian Orihuela-Torres, Auteur
Type de document :	Article
Dans :	Bird Study (67(2) July, 2020)
Article en page(s) :	224-231
Langues:	Anglais
Mots-clés :	Espagne ; Accipitridae ; Plomb ; comportement alimentaire
Résumé :	Capsule: Diet analysis revealed high lead exposure for Greater Spotted Eagles Clanga clanga wintering in southeast Spain. Aims: To describe the diet composition of the endangered Greater Spotted Eagle in a wintering area located in southeast Spain, and determine lead ammunition exposure through analysis of regurgitated pellets and prey remains. Methods: Between 2008 and 2018, a total of 26 pellets, 29 prey remains and 10 direct predation observations were collected in El Hondo Natural Park, Spain. All the pellets and 10 prey remains were analysed with X-ray in order to detect metal from ammunition. Results: Greater Spotted Eagles fed mainly on birds, with 18 different species accounting for 73.1% of prey items and 66.1% of biomass consumed. The most frequent species identified were Common Moorhen Gallinula chloropus (23.1%), rats Rattus spp. (15.4%) and Common Teal Anas crecca (8.9%). Ammunition was detected in 42.3% of regurgitated pellets and in 40.0% of prey remains analysed. Of those containing ammunition, lead shot was found in 63.9% of pellets and 25.0% of prey remains. Conclusion: High lead shot presence in pellets and prey remains of wintering Greater Spotted Eagles in southeast Spain warns of a high risk of lead poisoning. Factors such as feeding behaviour, the large space–time overlap between the raptor presence and the waterbird hunting season and non-compliance with the ban on the use of lead ammunition are likely contributing to high lead exposure.
En ligne :	https://doi.org/10.1080/00063657.2020.1810206

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