Circular migration of adult honey buzzards, pernis apivorus, crossing the central mediterranean?

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Autore: Agostini Nicolantonio, Logozzo Daniela, Panuccio Michele, Premuda Guido

Anno: 2003

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"Circular migration of adult honey buzzards, pernis apivorus, crossing the central mediterranean?" - Rivista Italiana Ornitologia - Milano 73 (1) ; 79-81, 30-IX-2003

da: http://www.raptormigration.org/Circular.pdf

al pdf