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Résumé :
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Based on 3276 Greenfinches caught and ringed in Leek, Groningen, NE-Netherlands in 1990-2013, the origin of the birds was investigated. Birds of the local breeding population are mainly sedentary and roam within a 30 km radius during the year. Small numbers migrate to Belgium and northwestern France. Between November and March wintering Greenfinches from Norway and probably Denmark supplement the local population. In April, Greenfinches that spent the winter in Belgium, may pass the Netherlands en route to breeding sites in Sweden.
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