Have you seen a ringed Bonelli's Eagle or Egyptian Vulture? Please let us know. Your cooperation is important!

During the breeding seasons of 2008-2015, the Biology Conservation Group of the University of Barcelona has marked 297 Bonelli's eagle chicks in Catalonia. The marking consisted on ringing the chicks with a conventional metallic ring in one leg, and a red alphanumeric coded band (readable from long distances) in the other leg. The alphanumeric coded band is readed vertically, from upwards to downwards. During 2011-2015, 25 chicks were also marked in Andalusia (blue band) and 33 more in Castilla y León (green band).

Similarly, during the breeding seasons of 2012-2016, the Biology Conservation Group has marked 79 Egyptian vulture chicks in Catalonia using the same kind of rings and coded bands.

Bonelli's eagle chick marked by the Conservation Biology Group.	The same individual recruited in a territory. Photo: Alain Marmasse.	Egyptian vulture chick marked by the Conservation Biology Group.

The resighting of marked individuals is a basic source of information in order to estimate the survival of these endangered species. For this reason, we ask to all birdwatchers sighting marked Bonelli's eagles or Egyptian Vultures that email us at aligaperdiguera@ub.edu writing the alphanumeric code, the place and the date of the sighting.

Thank you very much for your cooperation!