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Passer montanus ringed by Landsort Bird Observatory. sv En pilfink Passer montanus ringmrkt vid Landsorts fyr Landsorts sdra udde ja syd om Nynshamn Sdermanland Stockholms ln Sverige Denna ringmrkning utfrs av Landsorts fgelstation en Eurasian Tree Sparrow Passer montanus ringed at Landsort Lighthouse on the south cape of the island