Records of fatal attacks by Rose-ringed parakeets "Psittacula krameri" on native avifauna



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Title: Records of fatal attacks by Rose-ringed parakeets "Psittacula krameri" on native avifauna
Authors: Consorci del Museu de Ciències Naturals de Barcelona
Covas, Laia
Senar, Juan Carlos
Roqué Roqué, Laura
Quesada, Javier
Issue Date: 7-Nov-2017
Keywords: Ocells
Agressivitat en els animals
Animals invasors
Spatial coverage: Barcelona
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Citation: Revista Catalana d’Ornitologia (2017), volum 33, p. 45-49
Publisher: Associació Institut Català d'Ornitologia
Extent: 5 p.
Abstract: Interspecific interactions between invasive and native fauna are poorly studied. Here we report six fatal attacks by Rose-ringed Parakeets Psittacula krameri, one of the most successful invasive avian species in Europe, on House Sparrows Passer domesticus and Blue Tits Cyanistes caeruleus in Barcelona, Catalonia, Spain. Sparrows and tits were attacked through a 1.5-cm mesh whilst trapped inside funnel traps. Attacks were performed by more than one Rose-ringed Parakeets. An osteological examination of the House Sparrow skeletons revealed that most of the injuries were caused by the drilling and crushing of skull bones. Competition for food or nest-site defence do not seem to be plausible causes for such aggressive behaviour by these parakeets.
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