Two breeding pairs of Imperial Eagles, guarded by the Bulgarian Society for the Protection of Birds (BSPB), already hatched their chicks. They are the first for this season. The nests of the first successful pairs are in Sakar and Western Strandja. "We watched two chicks in each nest, but it is possible in some of the nests to have a third one”, said Dimitar Demerdzhiev, Conservation Officer for the Imperial Eagle in LIFE + project for the protection of the Imperial Eagle and Saker Falcon. The project, which is implemented by BSPB with the financial support of the European Union, includes guarding of the most endangered nests of Imperial eagles. The other couples incubate at the moment. Two couples suffered from human disturbance during forestry operations. They were forced to change their nests but luckily managed to find a new hunting territory and to build new nests. BSPB experts hope that they will be able to breed successfully too. In early July seven of the newly hatched eagles will be tagged with satellite transmitters. This will allow scientists to monitor their movements and to report and analyze the threats for this endangered species. Last summer seven other juvenile Imperial Eagles were tagged. Two of them have returned to Bulgaria after spending the winter in Turkey and Syria.