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6 M. Panuccio et al.

ACKNOWLEDGEMENTS

We wish to thank: the Apuane Natural Park, M. Franchini and the COT, E. Arcamone, A. 200
Bartolini, A. Benvenuti, G. Bertola, M. Borioni, E. Bosi, A. Canci, M. Casani, G. Cavalloni, A. 205
Chines, A. Chiti-Batelli, L. Colligiani, I. Corsi, S. Cutini, G. Gerra, G. Grande, M. Heyberger, S.
Laficara, M. Marcone, G. Nardini, G. Paesani, L. Puglisi, A. Sacchetti, F.S ava, T. Spenlehauer, G.S
peroni, A. Vezzani, F. Viviani. Finally, we thank G. Cattaneo and M. Campora for data concern-
ing the flight morphology of Short-toed Snake Eagles, F. Michelotti for improving the English,
and C. Pennycuick, K. Bildstein and U. Mellone for their useful comments on earlier drafts of
the manuscript. MEDRAPTORS (www.raptormigration.org), a network of ornithologists and bird-
watchers, works to improve research and the protection of migrating birds of prey through specific
projects and observation camps.

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