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Movements and ‘moving’ population estimates of Yelkouan Shearwater Puffinus yelkouan at Tavolara, Sardinia
Abstract and Figures
An ongoing monitoring programme allowed the re-assessment of the population size of Yelkouan Shearwater Puffinus yelkouan breeding at Tavolara (Sardinia, Italy), the largest world colony of this species. Results point at 9,991-13,424 breeding pairs, obtained by afternoon counts from land of birds approaching the colony and confirmed by the census of ground plots. Feeding areas of breeding adults, investigated with GPS loggers, stretch for some hundred kilometres and are mostly located at coastal gulfs of N and W Sardinia and SW Corsica, between Oristano, Ajaccio and the Maddalena archipelago. Counts from land suggest that the Orosei Gulf, in E Sardinia, might also be used.
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