| Institution: | Bird Ecology Unit, Division of Population Biology, Department of Ecology and Systematics, PO Box 65 (Viikinkaari 1), FIN-00014 University of Helsinki, Finland;;Integrative Ecology Unit, Division of Population Biology, Department of Ecology and Systematics, PO Box 65 (Viikinkaari 1), FIN-00014 University of Helsinki, Finland;;Department of Biological and Environmental Science, University of Jyväskylä, PO Box 35, FIN-40351 Jyväskylä, Finland;;Finnish Game and Fisheries Research Institute, PO Box 6, FIN-00721, Helsinki, Finland;and;Finnish Museum of Natural History, Finnish Bird Ringing Centre, PO Box 17, FIN-00014, University of Helsinki, Finland |
