Western Marsh Harriers Circus aeruginosus from nearby breeding areas migrate along comparable loops, but on contrasting schedules in the West African–Eurasian flyway von Vansteelant, Wouter M. G., Klaassen, Raymond, Strandberg, Roine, Janssens, Kjell, T´Jollyn, Filiep, Bouten, Willem, Koks, Ben J., Anselin, Anny

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