Grup d'Anellament de Calldetenes-Osona

In 2011 we started a bird ringing and wing-tagging project of Griffon vultures (Gyps fulvus), after many ringing sessions we are still studing their movements, moult and populations problems.

This project started because we have helped another project of Carles Santana in 'La Terreta' (Tremp) in 2006, and it motivated us.

Research work