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Rutes migratòries i àrees d'hivernada del virot gros Calonectris Diomedea des Pantaleu (Mallorca)

Grup Balear d'Ornitologia i Defensa de la Naturalesa
  • Ornithology
  • Birds Migration Spain Majorca


Migratory routes and wintering areas of Cory’s shearwaters Calonectris diomedea from es Pantaleu (Mallorca). Here we show the migratory trips through the Atlantic Ocean of 8 Cory’s shearwaters breeding at es Pantaleu islet (P.N. de sa Dragonera, Majorca) during the winter of 2002-2003. The majority of the birds preferred the coasts of the Sahara and of Mauritania and to a lesser extent those of Namibia, corresponding to two zones of oceanic upwelling of cold and very productive waters (Canary and Benguela currents respectively). One of the birds behaved more in keeping with those from the Atlantic colonies, wintering in the confluence of the Brazilian and Malvinas currents off the coasts of southern Brazil and Uruguay, a straight-line distance of some 9000 km from es Pantaleu. Another spent the winter in the equatorial waters of the gulf of Guinea. Most of the birds made a loop-migration return through the northern sub-equatorial Atlantic, avoiding the calm areas. One of them reached the coasts of the Small Antilles, in the Caribbean.

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