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La Tour du Valat

Institut de recherche pour la conservation des zones humides méditerranéennes

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Titre :	Observations from September to November 2011
Auteurs :	T. Baudoux, Auteur ; A. Burnel, Auteur ; M. Derume, Auteur ; A. Dirick, Auteur ; P. Duchesne, Auteur ; C. Huyghebaert, Auteur ; P. Loly, Auteur ; T. Ory, Auteur ; J.-P. Jacob, Auteur
Type de document :	Article
Dans :	Aves (49(3) SEP 2012)
Article en page(s) :	169-192
Résumé :	Observations from September to November 2011 After a cool July and August the autumn, by contrast, was mild and sunny. The main events were an unusual passage of Pallid Harrier Circus macrourus, a small influx throughout the autumn of Shorteared Owls Asio flammeus and most notably a new influx of Rough-legged Buzzard Buteo lagopus in numbers even greater than in 2010. A new contact in Wallonia with the Estonian Greater Spotted Eagle Aquila clanga "Tonn"; in full migration on October 16, was not expected. The status of the Yellow-browed Warbler Phylloscopus inornatus is now confirmed as a regular autumn migrant, with five sightings (September 30 to October 23). In late autumn, the Great White Egret Casmerodius albus reached numbers not previously seen in our area.In autumn, Fieldfares Turdus pilaris and Mistle Thrushes Turdus viscivorus, Bearded Tits Panurus biarmicus, Eurasian Jays Garrulus glandarius, Bramblings Fringilla montifringilla and in particular Common Crossbills Loxia curvirostra were less frequent than in 2010. Many other seed eaters were also again scarce (including Goldfinch Carduelis carduelis, Greenfinch Carduelis chloris, Bullfinch Pyrrhula pyrrhula, and Yellowhammer Emberiza citrinella). Corn Buntings Emberiza calandra, on the other hand, were more numerous than the previous years.There was a substantial migration of, among others, Common Buzzard Buteo buteo, Red Kite Milvus Milvus, Blackcap Sylvia atricapilla, Tree Sparrow Passer montanus and Siskin Carduelis spinus.

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