La Tour du Valat

Article

Timing of migration and body mass changes in the Garden Warbler (Sylvia borin) at three sites in sub-Saharan West Africa

Ulf Ottosson, Auteur ; Jonas Waldenström, Auteur ; Christian Hjort, Auteur ; Ross Mcgregor, Auteur

Dans Ostrich (78(2) June, 2007)

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Article

Migration of four Sylvia warblers through northern Senegal

Ulf Ottosson, Auteur ; Stephen Rumsey, Auteur ; Christian Hjort, Auteur

Dans Ringing & Migration (20(4) November, 2001)

We present ringing data from the Parc National des Oiseaux du Djoudj, Senegal, for Blackcap Sylvia atricapilla, Orphean Warbler S. hortensis, Subalpine Warbler S. cantillans and Whitethroat S. communis. A total of 5,607 birds of the four species[...]

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Article

Migration patterns of Palaearctic Acrocephalus and Sylvia warblers in north-eastern Nigeria.

Ulf Ottosson, Auteur ; Franz Bairlein, Auteur ; Christian Hjort, Auteur

Dans Vogelwarte (41(4) Dezember 2002)

In order to gather information on trans-Saharan migration strategies, phenology and energetics the passage of Palaearctic birds was studied in north-eastern Nigeria close to Lake Chad, in spring 1999 and in spring and autumn 2000. The ringing da[...]

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